Gu Ze Jia returns to China as his twin brother Gu Ze An in order to get revenge, and finds himself entangled in a sadomasochistic relationship with Yan Zhen.

Yan Zhen became a widow less than a year after marrying the heir of Anshi Group. Her husband encountered an accident and went missing on their wedding anniversary. Four years later, Yan Zhen became a decisive assistant to the group's general manager. When she was about to declare his death, her husband returned all of a sudden. Standing before her was a man who looks exactly like her husband. However, in terms of personality, he was a totally different person and claimed to be Yan Zhen's brother-in-law. He went against Yan Zhen in everything, thinking that she was the mastermind behind the accident back then. On the other hand, Yan Zhen seemed to be hiding a secret.