ep. 1
Thanks to her husband Jeong Seok’s infidelity, Mi-ju ended up as a divorced single-mom at the age of 29. She moved to the U.S. with her young son, and took on any job she could find to make ends meet. She lived fiercely to raise her son and to educate herself, and ultimately succeeded in becoming a dentist. Now, after ten years, she is returning to Korea to take revenge on her ex-husband.
On her 10th wedding anniversary, Eun-yeong ? Jeong Seok’s former mistress and now his wife ? goes to the airport to pick-up Alice, the dentist she has scouted to her hospital. But Alice is no other than Mi-ju, who had purposely approached Eun-yeong to gain her friendship. Mi-ju is delighted when she discovers she will be living right next door to Jeong Seok and Eun-yeong.
However, on the first night at her new house, Mi-ju unintentionally ends up sleeping under the same roof with an unexpected visitor, Rookie. Next day, they quarrel over the house, and it seems that the revenge Mi-ju has plotted for ten years is not going to go as smoothly as she hoped.
ep. 2
Waking up at Mi-ju’s house, Rookie goes to his room to pack his clothes. Just when he is about to put his pants on, Mi-ju burst opens the door making him fall over the clothes hanger, aggravating his shoulder wound. They rush to the hospital, and while waiting for the results Rookie telephones Mi-ju repeatedly ordering her to do his errands saying she made his injury worse. The two quarrel whenever they meet, and their relationship seems to go from bad to worse.
However, even while quarreling with Rookie, Mi-ju never forgets her plans to take revenge on Jeong Seok, and one day hears Eun-yeong’s complains about her sex life with her husband. Mi-ju presents Eun-yeong with a sexy nightdress and ten-year old roasted bamboo salt, which she claims invigorates men’s sexual prowess when they drink it with wine. But this bamboo salt is in fact no other then a strong constipation reliever!
ep. 3
While entering the hospital, Rookie accidentally overhears his manager talking with his coach, and discovers that his deltoid muscle has been ruptured, making his full recovery impossible. He runs out of the hospital, and finds himself at a loss about his life. His coach is worried about his injury, and advises that he undergo a shoulder operation. However Rookie refuses to take the operation as long as the injury doesn’t affect his daily life, and declares he will give up baseball. Leaving his training camp he has no place to go, so he suggests to Mi-ju that they share the house, but she refuses him point-blank.
On other hand, Eun-yeong arranges a blind date for Mi-ju with Tae-jun, Jeong Seok’s older college buddy. They end up going to an alumni meeting together, where a charity auction for treating children burn patients takes place. Eun-yeong frets to make an antique necklace hers, but Tae-jun is the one to actually buy the necklace. He promptly gives it to Mi-ju.
ep. 4
While gathering up the baseball equipment that Rookie threw away, Mi-ju slips. Meanwhile having second thoughts about his equipment, Rookie returns to the house just in time to see Mi-ju fall. He runs to her and tries to pick her up. At that moment Da-rim appears and sees them in an awkward pose, which causes her to misunderstand their relationship. On the other hand, Mi-ju finally succeeds in opening Jeong Seok’s secret safe, and takes his secret account register and bankbook hidden within. She calls him up, determined to end her revenge.
ep. 5
Tae-jun invites Mi-ju to go midnight fishing with him. Jeong Seok spies them talking, and feeling a funny sort of jealousy, he follows them.
Mi-ju, still holding onto her vows of revenge calls Jeong Seok. With his secret account register and bankbook in her hands, she threatens to tell Eun-yeong about them. Not knowing what else to do, Jeong Seok decides to confess the true identity of Mi-ju to his wife, and hurries home. Near his house, he accidentally bumps into Jun, who breaks into a big smile, and asks for directions to Ms. Song Mi-ju’s house, his mother. Jeong Seok’s heart falls when he hears this. Now, finally reunited with his son after ten years, he is flooded with emotions he hadn’t expected.
ep. 6
Meeting his son Jun for the first time in ten years, Jeong Seok wants to do so many things for him. So first, he buys Jun a skateboard, and the two of them spend some fun time at the neighborhood park like father and son. Meanwhile at Jeong Seok’s house, his daughter Hana burns herself because of a hot pot of noodles. Eun-yeong tries calling her husband but his cell phone has been turned off. Not knowing what else to do, she calls Tae-jun.
On the other hand, feeling stifled, Mi-ju leaves the house for some batting practice when she bumps into Rookie. He remarks that she seems to feel stifled everyday, and offering to set up a batting area in her garden, he takes her to an auto junkyard. In a flash Rookie sets up a cool batting area for Mi-ju. Even though they quibble with each other on the outside, the two can’t help feeling a strange sort of affinity between them. They don’t realize the true identity of that feeling but they can’t help being conscious of each other’s presence.
ep. 7
On the other hand, feeling stifled, Mi-ju leaves the house for some batting practice when she bumps into Rookie. He remarks that she seems to feel stifled everyday, and offering to set up a batting area in her garden, he takes her to an auto junkyard. In a flash Rookie sets up a cool batting area for Mi-ju. Even though they quibble with each other on the outside, the two can’t help feeling a strange sort of affinity between them. They don’t realize the true identity of that feeling but they can’t help being conscious of each other’s presence. After observing his mother and Rookie closely, Mi-ju’s son Jun, half jokingly remarks that he thinks Rookie is attracted to her.
Meanwhile, Jeong Seok drops by a cell phone shop to buy one for Jun. When he asks what kind of phones are popular among young people, the shop owner mistakenly presumes that he is having an affair, and even offers a couple payment system. But in the same shop, the real estate agent Chu Gil-yeon is sitting at the table writing out a house-leasing contract, and overhears the conversation between the two men. She looks at Jeong Seok with eyes that said, “Ah-ha. I’ve caught you!”
ep. 8
When Chu Gil-yeon meets Eun-yeong at a mall, she informs Eun-yeong that she saw her husband buy a cell phone that afternoon. Eun-yeong checks her husband’s cell phone, presuming that he is having an affair with a young woman.
Rookie tells Mi-ju that he is having his operation at seven in the morning, and stubbornly demands that she be there because if anything goes wrong he needs to sell the house that she is living in to pay for treatments. Mi-ju thinks Rookie is being absurd, but something pulls her to him and she finds herself running to the hospital. However, when she hurriedly arrives there, she sees Rookie walking by supported by his manager and Da-rim.
ep. 9
When Jeong Seok hears from Eun-yeong that Rookie is attracted to Mi-ju he can’t help being sensitive about it, and pushes his wife to find out more by inviting Mi-ju over to their house for some beer.
Jun is alone in the house, and Jeong Seok becomes drunk while waiting for Mi-ju. Meanwhile, Rookie suddenly takes out his cell phone, and takes a picture of Mi-ju’s face. He tells startled Mi-ju that he just took an x-ray, and since the wounds of the heart always shows on the face, he will study the x-ray carefully, and heal her injury. And there’s nothing Mi-ju can do about her trembling heart.
ep. 10
Thinking that Jeong Seok has put one over her, Mi-ju comes up with another idea for revenge while talking with Eun-yeong.
Mi-ju sends a text message to Jeong Seok as if it was from, telling him to come to the steam bathhouse. Believing that the message is from Jun, Jeong Seok heads happily for the bathhouse. Mi-ju discovers Jeong Seok in one of the steam rooms, and creates a kiss mark on his neck with a suction tool. She then runs away from the scene. Realizing he has been had again by Mi-ju, he sees Rookie entering her house late at night, and throws stones at the house.
Meanwhile, Jeong Seok plans his revenge to get back at Mi-ju, and invites her and Jun to his house for dinner. After eating the spaghetti that Jeong Seok prepared, Mi-ju has a sudden attack of stomach cramps and runs for the bathroom.
ep. 11
After going back and forth between Rookie and Eok-nyeon, Da-decides to end her relationship with Rookie. On the other hand, on the pretext that he can’t clean his house because he is still recovering from his operation, he calls Mi-ju to his house. Da-rim arrives at Rookie’s house just in time to find him and Mi-ju tangled in a strange position after a commotion with the mouse.
ep. 12
Rookie prepares cake and champagne, and calls Mi-ju to the front yard of the pension. While taking a walk, Eun-yeong tells Jeong Seok that Rookie is planning to have a party with Mi-ju. Jeong Seok imagines Rookie confessing his love, and hastens his wife to go back to the pension. After intentionally intruding upon Rookie and Mi-ju’s private party, Jeong Seok offers to pour Mi-ju a drink, and sprays champagne all over her instead, ruining the whole party. Realizing that Jeong Seok is jealous, she tells Rookie she’s going into the pension to wash up, and reappears wearing a really sexy dress.
ep. 13
Returning to Seoul, Jeong Seok pretends to accompany Jun to his house, and uses the opportunity to memorize the entrance code to Mi-ju’s house. When everyone is asleep, he succeeds in getting into her house, and madly looks for his account register and bankbook. At the same time, Jun wakes up and comes out from his room to get a glass of water. He hears a noise from the upstairs attic room, and goes up to check out the noise. He carefully opens the attic door, and thinks that it is the same thief who broke their glass window the other time. He tells Eun-yeong that there is a thief is in his house, and Eun-yeong calls the police. Hearing the loud, siren of the police car, the whole neighborhood gathers in front of Mi-ju’s house. Without realizing what’s going on Jeong Seok continues searching for his secret account register and bankbook. When he finally discovers through the window that he has been surrounded, he calls Mi-ju and begs her to save him.
ep. 14
Mi-ju invites Rookie over to her house for some fruit, but discovers right away that there is no fruit left in the refrigerator. Mi-ju calls to cancel her invitation, but Rookie lies saying he has already reached her house. He rushes out of his own house wearing his top inside out. Mi-ju ends up going to the mall to shop for groceries with Rookie, and he asks her to make him broiled hot rice cake the next day, creating another excuse for him to visit Mi-ju’s house again.
The next day, Sang-mi sees Rookie coming out of Mi-ju’s house. While going through the mail, she finds a speeding violation notice addressed to Ji-hwan, and in the picture of the car, she notices a woman’s hand reaching out from the passenger seat.
ep. 15
In order to find out why Tae-jun (Choi Wu-jae) keeps sending baskets of flowers to Jeong Seok (Cheng Woon-in), Mi-ju (Yoo Ho-jung) asks Tae-jun to meet with her. Thinking that Mi-ju is in love with her husband, Eun-yeong (Iim Ji-eun) follows her secretly. Surprised to find Mi-ju meeting Tae-jun, Eun-yeong sits behind them to eavesdrop on their conversation. Mi-ju and Tae-jun start talking about their first love, and when it seems they are about to reveal one of each other’s secret, Eun-yeong becomes afraid that Tae-jun might start talking about his affair with her. She calls Tae-jun and demands that they meet immediately. Tae-jun excuses himself from Mi-ju saying he received an urgent call from his hospital, and asks Eun-yeong to finish their conversation later.
On her way back home, Mi-ju meets Jun (Kim Beom) who tells her that Rookie (Lee Ki-woo) went to look for her at the cafe she has just left. So she heads back to the place, and sees Eun-yeong and Tae-jun together. She overhears their conversation and is shocked to find out about their past affair.
ep. 16
After finding out about the true relationship between Jeong Seok (Cheng Woon-in) and Mi-ju (Yoo Ho-jung), Rookie (Lee Ki-woo) sees the two of them fighting. Rookie runs to Jeong Seok and angrily shouts at him but Jeong Seok only tells him to mind his own business. Angry at Jeong Seok’s attitude, Rookie declares that he will become an important person for Mi-ju and leaves.
Being suspicious of Jeong Seok, Eun-yeong (Iim Ji-eun) questions him about where and who he has been with the whole day. Feeling frustrated, Jeong Seok angrily answers that even a worm squirms when it’s trodden on. Jeong Seok borrows Tae-jun’s (Choi Wu-jae) car and leaves for a fishing site with Jun (Kim Beom). Eun-yeong traces Jeong Seok’s location with the cell phone, and goes after him. At the fishing site, Jeong Seok cooks ramen for Jun, and he can’t help his eyes filling with tears while watching Jun enjoy the ramen. He presents Jun with the stethoscope, engraved with Mi-ju and his name.
Afterwards, while urinating in open air with Jun, Jeong Seok spies Eun-yeong who has followed them all the way to the fishing site. He takes Jun by the hand, and they start running. However, while trying to straighten his clothes, Jun drops the stethoscope that Jeong Seok gave him.
ep. 17
After finding out that Jun (Kim Beom) is Jeong Seok’s (Cheng Woon-in) son, Eun-yeong (Iim Ji-eun) is outraged that Mi-ju (Yoo Ho-jung) and her husband had deceived her all this time, but pretends to know nothing. While playing around the Hangang River, Jun gets hurt trying to protect Hana. Jeong Seok panics and starts running while carrying Jun on his back. Eun-yeong angrily asks if startled Hana is invisible to him, and tells him to get out of her sight.
Not even dreaming that Eun-yeong might be aware that Jun is his son, Jeong Seok becomes angry at Eun-yeong’s attitude. But when his wife asks him “Does your heart hurt because he’s your child?” he is shocked to realize Eun-yeong knows everything. Jeong Seok tries to justify himself, saying that he wanted to tell her, that he hadn’t meant to lie to her. However, Eun-yeong just shouts whether Jun knows anything about this, and threatens to tell Jun everything. Half crying, Jun pleads with her not to say anything to Jun.
ep. 18
Eun-yeong (Iim Ji-eun) demands Jeong Seok (Cheng Woong-in) for a divorce, saying she can’t forgive him for lying to her. Jeong Seok meets Mi-ju (Yoo Ho-jung) at a neighborhood tent bar for drinks. After becoming a little drunk, he confesses that he is meeting Eun-yeong the next day at court, and that she has asked him for a divorce. He demands how they can get a divorce when they already have a child. Realizing that he doesn’t want to get divorced, Mi-ju tells him there is a way to change Eun-yeong’s mind. She advices Jeong Seok to just say three things to his wife.
Having organized her heart, Mi-ju prepares to leave for the United States. She goes to find Rookie (Lee Ki-woo) practicing, and asks him out for dinner as a compensation for having healed her wounds. However, Rookie has a prior engagement with the coach, and they agree to meet the next day.
Next day, sitting in a taxi headed for the airport, she calls Rookie, chanting to herself, “Please don’t answer. Please don’t answer.” When he really doesn’t answer the call she lets out a sigh of relief and leaves a voice mail.