Echoes of the Seven Deadly Sins

Unbelievable serial murders reappeared in Jiangchuan University, and fear and rumors spread. The legendary girl Yang Xiaoyan lurks on campus and secretly explores the puzzle of the seven deadly sins, but she falls into the devil's game. Victims appeared one after another, and police detective Luo Tian transformed into a professor and entered Jiangchuan University, and a battle of wits and courage quietly began. The mysterious devil card, the intricate password and the perfect alibi. When the truth is revealed, the murderer turns out to be a character that no one could have imagined. Is this the bloodthirsty maniac that made people shudder twenty years ago? Or, the murderer is someone else.