A young man who disappeared during a Christmas party is the subject of a case for criminal inspector Antti Hautalehto at the police in Borgå. His boss's alcohol problem increases his work pressure.
The police receive new information about drownings; the undertaker receives unexpected guests at the Christmas table and the Christmas dinner is fatally interrupted.
The media and the top management of the police demand results; Hautalehto secretly follows a different line of investigation; Hautalehto's budding love suffers from work obligations.
KRP and Hautalehto join forces to get to the bottom of what happened. Hautalehto underestimates the power of the killer's mad thirst for revenge and puts the innocent man in mortal danger.