Rebecka Martinsson recovers from a mental breakdown and is offered job as a prosecutor. But her unconventional work methods are met with resistance from some colleagues.
A young couple of divers are trapped and drowned under the ice by a mysterious figure. Rebecka and Wilma investigate and find out that the divers were examining the wreck of a Nazi plane.
Rebecka is getting ready to move in with Måns, but she comes across a horrible crime scene after her neighbor sees something amiss in a nearby house. Unfortunately, she is prevented from investigating because of her pending departure.
Rebecka's replacement gets somebody to confess to the murder, but Rebecka's own under-the-radar inquiries have come up with a different motive involving a family inheritance.
