Tam Thai Li was a photographer in the advertising company, but he also was a gigolo every weekend for part-time job. A Friday evening, Tam hooked up a woman ,Sophie, in her house. She saw the man outside the window who wearing red leather jacket was going to execute raids a female and she screamed. Tam rushed out but no one’s there. Afterwards, Sophie reported to the police, Tam also went to help for investigation. He also saw the victim ,Ruan Ging Lan; Since Tam is not eyewitness and he is difficult to determine the suspect, so police released Keung. Tam follows  Keung to come to a table dance bar, he felt Keung’s next target was the dancer, Keung and the dance left, Tam followed immediately, but collised with a waiter when he rushed out the bar, and Keung has gone away. He searched everywhere, finally he discovered the dancer dead on the ground. Few days later, Tam meets Ruan Ging Lan outside the bar, she requested to help Tam to catch the murderer, Tam took the photo to be evidence