The police have finally had a breakthrough. More and more points to the fact that Torgny's holiday flirt Christine Schürrer may be the culprit. The child murders in Arboga part 2 is a nerve-wracking story about the police's search for evidence.

On a cold autumn day, the police find plastic bags with body parts in Riddarfjärden in central Stockholm. The body turns out to be that of a man, but his identity is a mystery. Despite the fact that the head is badly burned, the police manage to produce a phantom image.