After a gambling boxing party, the wealthy second-generation Jiang Zhuo was about to confess his love to his girlfriend Tian Lin, but he was killed by a thug. Before he could see the killer clearly, he accidentally crossed over. Discovering a new girlfriend Tian Lin in the future time and spaceBoyfriend, burning with anger, returns to the past to search for the real culprit. Jiang Zhuo's' Flash 'skill was enhanced, posing a threat with a gun, installing eavesdropping, only to identify the culprit. However, it was not until he returned to the moment of being murdered that he discovered the culprit againIs it the person you least expect, willing or a desperate counterattack?