Elementary school student Jonas just wants to play football with his friends, but his teacher, Hufsa, is always on his case. His mother is patient and does everything she can to steer him through everyday life with love, despite all the behaviour letters from the school, about disruption, vandalism and violence. Then, one day, Hufsa is found dead at the bottom of some stairs at the school.

Six months earlier, psychologist Luna wakes up at home with her partner and their one-year-old son. Luna struggles with an intense need to control everything from her wardrobe and unsolved murders to her partner’s comings and goings. One morning, she is due to have a meeting with Alexander Cohen – the city’s hottest youth worker and lecturer. He has invited her to discuss a collaboration but doesn’t turn up. The following day, news breaks that Alexander has been found brutally murdered. Police officer Katja is Luna’s best friend and anchor in life, and she becomes even more crucial now she is to investigate Alexander’s death.

Behaviour Letter is a well-written, solid and exciting crime novel about our search for acceptance, and the dramatic consequences of a school system that doesn’t accommodate everyone.