Despite being deposed as president of his condominium association, grumpy 59-year-old Ove continues to watch over his neighbourhood with an iron fist. When pregnant Parvaneh and her family move into the terraced house opposite Ove and she accidentally backs into Ove’s mailbox, it sets off a series of unexpected changes in his life.

When Alex is alerted to a brutal murder, she brings the temporarily suspended Vilhelm and her colleague Josef to the crime scene. The victim turns out to have connections to the digital university Howl, which investigates the role of men in a changing world. At the same time, the case is linked to an older investigation into the "Balcony Man", which brings Martin Beck back to the department.

In the late 19th Century, a poacher and his wife move into a cave. They fight against society for their right to stay, as well as for their own relationship.