Policeman Patrik and his wife Erica, a crime author, are trying to find Lovisa, a missing girl, when suddenly someone tries to kill Lovisa's lover.

Following a storm, coast guard official Jessica discovers two dead divers. Suspecting foul play, she turns to Patrik for help.

The brutal murder of photographer Stigge Ericsson comes as a shock to Erica and Patrik. Who could have wanted to harm this nice old man?