A half-naked male corpse is found in a busy downtown area. The killer leaves a message taunting the police, then takes poison and kills himself just before he can be arrested.
A beautiful woman known as "the mistress," missing for days, seems to come back from the dead as a vengeful ghost in the deranged ramblings of a mentally ill person before his suicide.
Every clue points to the same person. What secrets lie behind this seemingly innocent woman?
Following her instincts, Captain He Xiao of the criminal investigation team gets closer to the truth, step by step. She sees two women bound together by fate and uncovers their tragic past.
A difficult choice lies before her: should the law brook no mercy, or should love come before all else?
This is a battle between justice and evil, and a struggle between human nature and fate.
