Zhao Minhe (Ji Cheng) is a rich man from a prominent family. Under family pressure, he broke up with his girlfriend Ji Hee and arranged a political marriage with Shin Se Yeon (Lee Da Hee), the daughter of a congressman. Since then, he has lived a life of debauchery. On the other side of the city, Jiang Youjing (Hwang Jung Eum) lives a completely different life from Zhao Minhe. She is busy and fulfilled, working hard, and is about to enter the marriage palace with her boyfriend An Duxun (Bae Soo Bin) who has been dating for seven years. The four people who should not have had any intersection, but because of a car accident, their fates are closely connected. An Duxun accidentally killed a person on a rainy day, and this person was Zhao Minhe's beloved girlfriend Ji Hee. For An Duxun's future, Youjing took the blame for him and was imprisoned. On the other hand, because of the loss of his beloved, Zhao Minhe vowed to use all means to avenge Youjing. The sadomasochistic story of four men and women begins.