Yu Chau is a cop who has gone so deep undercover within the triad. He can no longer tell which side of the law he's on. When he accidentally kills one of his pals in an operation, he runs off … Nick Cheung, Xu Jinglei, Lam Suet, Ni Da-Hong, Vithaya Pansringarm, Yuen Wah, Louis Cheung Added on Amazon Prime 2021-10-20. Youtube Trailer