Follow the work of the police force in the fictional city of Hällby.

Steph and Agnes go to the same school but don't like each other at all. Agnes with probably the best grades in the whole city, and Steph a little more of a bad girl. When their parents start dating during the summer they leave the two girls and Agnes' sister, while going on a trip through Europe. They have to live together in Agnes' apartment together...

In fall of 2016 Johanna Möller became known as the Arboga-woman. A mother of six and social worker in her forties was overnight suspected of two murders and one murder attempt. The story of how the manipulative Johanna Möller staged the killing of her father and her mother, and apparently even on her husband, has forever marked its place in Swedish criminal history.