Li Zheng and Li Ying are two brothers the owners of a dating agency called "True Love Club". The business is going very well, but everything changed when Xiao Feng is passed by a sweet love, who is interested in the agency to prove the relationship with their supposed "future wife", the beautiful psychiatrist Fei. What they do not know is that this regular case ends up in an unexpected and fun mess.

After a series of assassinations in Nanking, a Japanese spy master gathers a group of suspects in a mansion, then a tense cat-and-mouse game erupts as the Chinese agent tries to keep his or her identity a secret.

Crime story