After seven years of unresolved cases, the girl disappeared out of thin air, leaving the scene as clean as if no one had ever been there.
The only clue is a fingerprint from a dead man.
Serious case detective Chen Feng reopened an old case. Inspired by trace consultant Su Zhe,
The truth about tearing open underground pipes, hiding corpses in cement, and double concealment.
The logic is hard-core, with constant reversals. You won't be able to guess the real murderer until the end!
This story has no supernatural, time-travel, or supernatural settings. All suspense is based on the logic of real-life criminal investigation.