Two policemen must pretend to be a gay couple in order to investigate the murders of homosexuals in Hong Kong.

The third installment in the Lucky Stars series, following Winners and Sinners and My Lucky Stars. The team are released from prison to play detective in order to stop a ruthless gang from ruining their reputations, taking their lives, and that of a key witness in an upcoming trial. They must battle their way through and with the help of Muscles, take down the bad guys.

Chau and Beethoven, two Hong Kong police detectives, go through misadventures to protect a young girl from a ruthless crime lord, as she possesses a ledger that contains all of the gangster's activities. In the mix is a tough, no-nonsense policewoman, who falls for one of the detectives. Written by Oliver Chu