Hong-Sun-hee is a 39-year-old homemaker who is stunned to hear from her gynecologist that she has reached menopause. Song Jae-bin is a movie star who is 39 but pretends that he is in his early 30s. His acting career is sizzling, as he is the most popular celebrity in the country. While shooting a TV commercial he gets into a quarrel with one of the extras who happens to be Hong Sun-hee. Song Jae-bin can never forget his high school sweetheart and so his agent tracks down Sun-hee’s whereabouts and her cellphone number...

Jae-bin and Sun-hee agree to meet at a hotel suite room but they are shocked when they see each other. Sun-hee is happy to see Jae-bin but Jae-bin pretends he’s not who she thinks he is because Sun-hee has turned into a homely woman. Jae-bin decides to never meet Sun-hee again but Sun-hee starts to think of a way to get back at Jae-bin because he lied about his age to all his fans and also treated her like a nobody when they met at the hotel. When Sun-hee’s husband is about to be sentenced to prison for bilking investors, Sun-hee tries everything she can to pay back the money her husband owes them. She finally turns to Jae-bin for help...

Sun-hee goes to Jae-bin’s house and makes a proposition to sleep with him for one night if he will lend her some money. Believing that Sun-hee intends to catch him in the act and use it to blackmail him, Jae-bin videotapes the entire conversation they have. While Sun-hee is offering to sell her body to Jae-bin, Dong-hwa, Jae-bin’s brother, arrives home and sees the two of them chasing each other in the living room. Jae-bin quickly introduces Sun-hee as their new housekeeper to allay his brother’s suspicions. So Sun-hee becomes a housekeeper at Jae-bin’s house to make Dong-hwa keep believing that she’s not a love interest of Jae-bin. Meanwhile, Lee Na-yun, a top actress who found success in America, returns to Korea and signs an agency contract with Jae-bin’s talent management company. When Sun-hee tries to negotiate a new deal to become a full-time housekeeper at Jae-bin’s house, it is discovered that she stole one of Jae-bin’s possessions when the said item turns up on eBay where Sun-hee’s daughter, put it up for sale. This nearly gets Sun-hee fired...

Accused of being a thief, Sun-hee is helped by Jae-bin, who feels compassion for her, to stay as a full-time housekeeper. Jae-bin is not happy with Sun-hee but he looks after her for old time’s sake.

While comforting Sun-hee, who was humiliated at the party, Jae-bin and Sun-hee almost cross paths with Jung-sook, the wine bar owner and Sun-hee’s husband. Sun-hee’s awkward job as Jae-bin’s housekeeper creates awkward situations at the home. Sun-hee goes to a private investigator to find her husband’s whereabouts. Sun-hee asks Jae-bin to give her a salary advance because she needs the money to pay the private investigator and things get out of hand between Sun-hee and Jae-bin in a not-so-funny way...

Sun-hee finally hires the private investigator to track down her husband Yoo-shik and she finds where he is staying. Learning that her husband is still in Korea, Sun-hee tries to find out what kind of trouble he is in and goes to see him. Meanwhile, Jae-bin sees a date circled on Sun-hee’s calendar and not being aware that it’s the date of Sun-hee’s wedding anniversary, he thinks it’s her birthday or some kind of a special day. So he prepares a little party for her...

When Sun-hee finds Yoo-shik, he tells her that it would be a good idea to get a divorce on paper and then lies that it would shield her from losing her possessions to the loan sharks who are after him. Not knowing the truth, Sun-hee becomes scared of her husband’s situation. Meanwhile, Jae-bin learns more details about Sun-hee’s husband...

Jung-sook decides to marry Yoo-shik after he woos by showering her with love. Unaware that her husband had lied to her, Sun-hee keeps worrying about her husband’s plight. Meanwhile, Jae-bin and Dong-hwa find out what kind of person Na-yun is really like.

Na-yun senses that something is amiss when she sees Dong-hwa and Jae-bin treat Sun-hee very nicely and also witnesses Sun-hee talking to Jae-bin in an informal way as if they were friends. She decides to turn the tables around by using the tabloids. Jae-bin starts to develop feelings for Sun-hee but she is constantly obsessed over her husband.

Na-yun reveals that she is attracted to Jae-bin, who responds to her in a way that shows he’s in love with Sun-hee and not her. However, Sun-hee learns that her husband betrayed her for another woman and Dong-hwa, who was looking out for Sun-hee, tries to get closer with her...

When Dong-hwa tells Jae-bin that he likes their housekeeper Sun-hee, Jae-bin becomes very troubled. As his brother now becomes his rival for Sun-hee’s affection, Jae-bin doubles his efforts to make Sun-hee his girlfriend. Yoo-shik finds it confusing on why Dong-hwa and Jae-bin are so kind to Sun-hee...

Jung-sook asks for management advice from Dong-hwa, who refuses to help her. Yoo-shik tries to pressure Dong-hwa by mentioning a hypothetical situation where Jae-bin’s real name might be leaked to the press but this draws Dong-hwa’s ire. Jae-bin and Sun-hee go on a trip together and learn more about each other. Sun-hee makes a choice on which brother to date...

Dong-chul confronts Na-yun and asks her if Hoon is his son. At that point, Na-yun breaks down and apologizes, implying that Hoon is actually his son. Dong-chul cancels all his film engagements and takes a day off without telling anyone where he is going. Sun-hee worries about Dong-chul when she can’t reach him. After learning the whole truth, Dong-chul returns home after a day of digesting the fact that Hoon is his son. He meets Dong-hwa and...

Hoon is surprised to see Dong-chul join him at a restaurant when he was expecting Dong-hwa to come. Sun-hee has a heart-to-heart talk with Ji-min about how adults make mistakes, too. Yoo-shik and Sun-hee meet by chance and when Sun-hee hears that he is investigating Song Jae-bin, she hits him over the head.

After the press conference ends, Dong-chul thanks Dong-hwa while having a drink. Meanwhile, Dong-hwa meets Na-yun and tells her that having the power to ruin everything doesn’t necessarily give her the power to make people return to her and this angers Na-yun...

Reporters continuously hound Hong Sun-hee to find out who she is. Dong-hwa declines to comment about the relationship between Sun-hee and Dong-chul and their future plans. Every day, another story about Song Jae-bin appears in the papers, making it hard to believe that he actually retired from acting...