Based on an astonishing true event, in which Cheng Bing who was a detective that served years of time in prison decided to crack his last case with his former colleagues.Based on an astonishing true event, in which Cheng Bing who was a detective that served years of time in prison decided to crack his last case with his former colleagues.Based on an astonishing true event, in which Cheng Bing who was a detective that served years of time in prison decided to crack his last case with his former colleagues.
