Gun Metal Grey

When a cop vents his grievance and anger to the world, he becomes the most dangerous guy in the force! Extracted from the top ten famous unsolved cases in Hong Kong, Gun Metal Grey depicts a cop’s road to destruction as well as the very truth of human nature. Fifteen years ago, upright police officer SHEK TUNG SING (Wong Yat Wa) was falsely accused of murder and sentenced to prison. Now that he has been discharged, he decides to get to the bottom of the case. Unfortunately, he is unable to brin…