In a church basement, a priest leads some young people in singing to celebrate the eighty-first birthday of Mariolina. Caterina goes to find Angela, who is late with the cake.

Lojacono is on a video call with Marina, his daughter, and her friend Chanel, when he gets a phone call from headquarters and goes to a new crime scene, to see what's what.

Lojacono and DA Piras arrive at the scene of the crime and meet Don Michele. The next morning Lojacono goes with Di Nardo to talk to the kids who had been in the parish hall with the victim.

The young volunteers talk about how they met and what they were doing the night of the murder. Aragona and Romano come back to headquarters with a photo they found at the victim's home.

Lojacono surprises Laura at dinnertime. Di Nardo has dinner with Rosaria, who has an invitation for her. At the dinner table, Giorgia has something to discuss with Francesco.

A parishioner shows up at police headquarters with photos she thinks are compromising. Lojacono and Alex then go to question the volunteers as to whether the insinuations could carry any weight.

Lojacono and Di Nardo go to speak with Don Michele again, when Mass is over. The priest confirms that he and Angela cared for each other very much but that they didn't have a relationship. He is being rather defensive, but Lojacono gets him to agree to cooperate.

Aragona and Romano go around with the photo they had found, asking questions of guys who might recognize him. At one point, a young man comes out of the bar and starts running, pursued by Aragona.

Alex has a conversation with her father, who hopes for a future for his daughter that will never actually happen. Meanwhile, Pisanelli is increasingly determined to catch the serial killer.

For different reasons, both Lojacono with Laura and Martone with Alex are carrying on their relationships in secret. At Mass, Don Michele asks the congregation to make an effort to help with the investigation into Angela's death.

After the benediction, Ottavia stops outside the church to talk to a few of the parishioners. She learns a few new details about Don Michele. Back at headquarters, she does some research and shares the results with her colleagues.