In Wushui Town on the southwest border, drug lords are everywhere, murdering every step of the way.
Undercover Lu Chen has been lurking for three years, cold-blooded and ruthless, and never tempted.
Until I met Su Wan, a female doctor in a small town——
She was the only light in his darkness, and the weakest point he dared not touch.
The love that licks blood at the tip of a knife is hidden deep in the thick fog.
