The murderer in the Star Detective Rose Hotel is none other than Wu Suozhou, played by Wu Lei. A prank in color7 caused the sister of Manager Zhang, played by Zhang Ruoyun, to commit suicide. In order to take revenge, Manager Zhang was ready to avenge his sister. Who knew that Wu was expelled from the school after being accused of taking full responsibility? His whole life was ruined and he was unwilling to do so. Revenge and become a murderer.