I Don't Like Younger Men 3

Original title: 딸의 친구 3

Dong-hoon is a detective who only has eyes for his foster daughter Yoon-ji. However, she's unemployed and only likes to party. One day, she brings her friend Hye-ri home. Hye-ri doesn't leave and acts as though she lives there, even bringing her boyfriend into the house for some adult playtime, tempting Dong-hoon.