Detective Patrik Hedstr�om tackles his toughest investigation yet when a string of suspicious deaths points to a potential serial killer who has turned his eye toward Fjallbacka and her dark forests, where two children vanished decades before.

Continues the story of local detective Patrik Hedström and his girlfriend, Erica Falck, the beloved crime-solving duo whose first child has just been born. But while they celebrate this new life, a suspicious drowning claims a little girl they knew well. As the murders implications widen, Patriks investigation threatens to tear apart the rural fishing village of Fjällbacka, where a secret lurks that spans generations.