Everything is ready for the baptism of Tizi's son when the priest's corpse is found. From here starts a daring investigation that sees Pasquali under investigation and a femme fatale chameleon. Will Fusco be able to solve the mystery this time too? Meanwhile, another mystery deepens. What's going on at the Viviani? A beautiful Argentine girl introduces herself to the old men of the BarLume by surprise: Massimo is in trouble and needs their help.