Police detective Jiang Yan and Gao Jingchi, the only son of a wealthy family, are the loving couple everyone envies. Their five-year-old daughter is sweet and well-behaved, and their family life is peaceful and complete.
An old case file, long sealed away, unexpectedly brings a terrifying secret to light. The teenage boy in the photograph, with a scar by his eye and a chilling gaze, is unmistakably the man who shares her bed every night.
His real name is Gu Chenxi. Fifteen years ago, he was a fugitive suspect in the South Suburbs serial dismemberment case. He has never been caught.
She starts to question everything. Was their love real, or was it a carefully rehearsed act? Was their sweet past nothing but a tenderness that slowly ate away at her?
More terrifying still, she realizes she doesn't want to find out.
Because once the truth is revealed, what she will lose is not just her husband, but her entire world.
It is poison, but in his familiar, low, gentle voice, he says, "Take it. You'll hurt less once you do."
Will she refuse?
If she knows it's a lie, will she break it?
Is she willing to face the truth? No.
Even if it's a dream, she wants to stay in it a little longer, because the price of waking is never being able to dream again.
But she is a police detective, of all things...
How will she bring this dangerous dance with the tiger to an end?
Theme: All evil wears a respectable mask, and all deep devotion conceals secrets that cannot bear the light of day. At the masquerade, whoever is the killer is the winner.