The drama is about a 20-year-old seductive romance about young men and women who are willing to sacrifice their entire lives for dangerous love. It is based on the French novel "Dangerous Liaisons". Woo Do-hwan plays the 20-year-old beast man Kwon Shi-hyun with a deadly look, who throws himself into a dangerous game to seduce Eun Tae-hee. Park Soo-young plays Eun Tae-hee, a 20-year-old "iron wall girl" who is fooled by love and believes that she is the most pitiful person in the world, but after meeting Kwon Shi-hyun, she realizes again that she has been looking forward to love. Moon Ga-young plays Choi Soo-ji, a role model of 20-year-old women, a female CEO, and the daughter of the hospital director. Because of her elegant background, even artists become friends with her. The new screenwriter is directed by MBC's one-act play, produced by BONFACTORY, which has produced "Master's Sun" and "She Was Pretty", and is expected to be broadcast after "Two Cops".