Qin Yuchen is the second master of the Qin family, and Ji Ning is the eldest daughter of the Ji family. Qin Yuchen was designed by his elder brother to spend a night with Ji Ning, but at night Ji Ning wanted to kill Qin Yuchen...

It turns out that Ji Ning's whole family was killed and his brother became a vegetative state. When he was awake, because of a cufflink clue, Ji Ning thought that the Qin family was his enemy. Ji Ning mistakenly thought that Qin Yuchen was the murderer. It was not until the end that he discovered that Qin Yuchen was the third party.The person who saved him years ago, and the murderer was his fiancé...