In one of the poorer districts of the city, a boy is beaten. The police are questioning the father of the beating victim to obtain some information. The man suspects that his son "owed" someone money and that is why the attack took place. Deputy Commissioner Bachleda and staff aspirant Białach are checking the man whose name was mentioned in his father's interrogation. A moment later, the police receive information that a man's body was found in a park near them. It turns out that this death is related to the boy's beating. Patrol Seven must connect many facts to find the truth in this investigation. The past of the people involved in the investigation and the deeds that no one remembers are of key importance. Ida returns to work at the police station. Mikołaj Białach tries to decorate her office a bit to make the psychologist feel appreciated. Unfortunately, Ida does not seem to appreciate her friend's expression of sympathy.
