Love Affair: Married Couple's Carpool

Stop peeking and let's have a fling. Min-ho works at a private detective agency where peeking into others' lives is what he does. One day, a pretty woman named Mi-na asks him to tail her husband and Min-ho is in for a shock. The man he's tracking down is in an affair with his wife, Soo-kyung. The place they meet each other is usually Min-ho's house after he's gone to work. Min-ho installs secret cameras to catch theem in action and watches the scene with Mi-na.

An art student named Gwang-ho gets dumped by his girlfriend because she was only his source of comfort, and that he's a Mama's boy and a premature ejaculator. He tries to avoid seeing her by going to a different academy and that's when his mother introduces him to her friend Soo-yeon, a sophisticated and intelligent looking woman. Gwang-ho falls for her. Gwang-ho's mother suddenly leaves for Australia because his father is sick and Gwang-ho gets to stay in Soo-yeon's house for a few days. Looking at her, he thinks of all the things he would like to do with her and Soo-yeon's niece Ha-kyeong stimulates him to do something about his feelings.

Do-won is a twenty-year-old who lives with his mom. However, he is secretly sleeping with his mother's friend Eun-ji who lives next door. One day, his mother's junior's husband dies and she moves into the neighborhood. Since then, his mother and her friends see alot of each other and So-jung who misses having a man, starts seducing Do-won...

My wife's mother, is better than my wife! Woo-suk married his wife Yoo-na because he loved her, but in the end, they go through a period of ennui and he's not happy with their sex life either. One day his wife goes to work without even making him breakfast and her mother comes home. She's a young-looking woman good enough to be in her 20s with a tiny waist and big breasts.

Joon-ho falls for his new step-mother, Min-joo. He suppresses his feelings because she is his father's woman, but one day his father passes away. In addition, the step-mother has been throwing him signs and her daughter Eun-jung leaves the house. Joon-ho is alone with Min-joo and he comforts her for losing her husband. However, he ends up comforting her not just mentally, but physically as well.

Brother-in-law, I will fill your vacancy now! His younger brother Min-hyeon lives with his older brother Jun-hyeon. Pyeong-seok, who was burdened by living in the same house with his brother-in-law, keeps his eyes on Mi-jeong, the young and sexy wife of his older brother. He even imagines sharing love with his brother-in-law at the sound of a strange moan from the next room. One Sunday, my older brother is away from home in a hurry for work, and the two of them are left alone with a strange feeling...

Twenty-year-old Jingu has an unrequited love for his housekeeper, Hyun-ah, who has a lush face, sexy body, and friendly personality. However, Hyeon-ah declares marriage to his father, not Jung-gu! One day, Jingu witnessed a scene where Hyun-a is having a hot time with a man other than his father, and he feels a tremendous sense of betrayal. Since then Jingu has shown her secretly filmed scenes, asking her to listen to only one wish...

Two couples vacation together. They were friends and campus couples in college. Meeting again after the years passed sparks new attractions.