Tianjin Yuewen Media

Hong Kong Customs and Excise Department officers Chow Ching-lai and Cheung Wan-nam share a close mentor-student relationship. On a case involving seized smuggled arms, Ching-lai is sent to take part in a joint operation with Interpol to capture a reclusive arms dealer. However, Wan-nam makes a drastic decision that further complicates the case.

Wei Chenggong, a working actor with big dreams, finally appears to get his big break when actress Milan invites him to play the lead role of "Killer Karl" in a new play. Little does Wei Chenggong know, he has fallen into a perilous conspiracy where all the villains are real, and only through his acting skills and good deal of luck will he be able to make it out alive.