As the depths of winter approach, Tan Xun is transferred back to her hometown of Dingcheng. On the green train, a strange woman sits beside her. The woman has only four fingers on her left hand.
Dingcheng has been gripped by unease lately, and the first case Tan Xun takes on is a shocking series of murders. All the clues point to a tangled connection between these cases and an unsolved case from ten years ago...
The only two women connected to it are both dead: one died in prison two years ago, and the other perished in a fire on a snowy day ten years ago.
Long-buried memories rise to the surface once more. Everything seems to have been planned in advance, yet somehow it also seems to have come without warning.
The clock ticks on. The sun has long since set, and the birds return to their roosts beneath the fading dusk, adding the final stroke to a dim, distant past. Every person in the picture is bound to face the choices fate has in store.
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The point of view is unclear.
The blurb describes the beginning of the story. The timeline switches between the present and ten years ago.
The female lead is Cheng Quekong.
There are lots of crazies, and the characters' values are questionable.
Theme: Justice and the rule of law
