Delitto a Posillipo

The old friends Nicola and Pasquale meet in the city after many years. The two, now married and with their children, try to marry their four children, but it soon becomes more difficult than expected.

Giorgio with some friends rehearses a show of Neapolitan songs financed thanks to an elderly artist. Having come to quarrel with the landlady, Giorgio rented a room with a good woman who lives with her beautiful daughter Maria. Love soon arises between the two.

Alboino, the Lombard ruler, wants to marry the daughter of a neighboring king, but she loves another. Her father arranges the marriage to Alboino, which he believes will be beneficial to him, only to have Alboino kill him and leave Amalchi, his daughter's real love, beaten and left for dead. Amalchi recovers to lead a revolt against the murderous Alboino and reclaim his woman.