Crystal remarried to husband with son. She's just a little bit different. She's trying to get along with her son Sewoong, he doesn't easily open his mind. One day, Se-woong and Dad's friend witnessed the cheating scene. After that day, whenever she sees a crystal that is lonely without her husband, it's starting to look like a woman...

New Son

Tae-hee, can't live without her dead husband, and is living alone without being remarried. Her neighborhood friends, Yeong-ju and Cheol-min still feels sorry for her. However, Yeong-ju's son, Min-ho, secretly takes pictures of Tae-hee, admiring her. One day, Tae-hee and Yeong-ju goes to the grocery when she heads back home, after forgetting her cellphone in Yeong-ju's house. Just in time, Min-ho comes out of the shower and hugs Tae-hee...

Mom's Friend 2020

Kyung-soo and Eun-ji are married due to their parents' business. Eunji is sad and depressed because her husband's love is not married. Meanwhile, Gyeongsu meets Yeongju without a wife and has an affair. One day, Eun-ji's boiler broke down at home, and she called an AS engineer. He meets Jung Hwan, who was a lover before marriage. The husband goes out of the hotel saying he sleeps at the hotel until the boiler is repaired, and Eunji and Junghwan get hotter after thinking about it...

My Wife's Lover 3

Joon-gi who sends her wife and children to study abroad lives alone. But one day, he was surprised to find someone who came into his house, Mi-na. As it turns out, he got into a real estate fraud... Situation had been tight and it made her stay at home for a while.  Meanwhile, her stepdaughter, Yoo-kyeong, who lives in a different house also comes home. She promises not to tell her mom that her stepfather is living with a younger woman. However, when she accidentally found her stepfather and Mi-na having sex, she feels a strange excitement...