A young woman calls the police and claims that her father is unconscious at home. She can't get in herself because she doesn't have the keys. Patrol five goes to help. Once there, the police decide to break down the door. Inside, they actually find a man lying on the floor. The victim has a clotted wound on the back of his head after being hit with a blunt instrument. After the technician's inspection, it turns out that the injured party must have let the attacker in himself, as there were no signs of forced entry. During the interrogation, the daughter introduces people from her father's immediate environment. The first suspicion falls on an accomplice with whom the victim had a tense relationship. Patrol five must follow up on this lead. Lena has been feeling unwell for some time. The policewoman has her suspicions. Tomek Szulc persuades his partner to take a pregnancy test.
