In impoverished post-war Rome, a gang of young thieves is lead by Stefano, the son of an illustrious professor. The police suspects that the criminals are actually university students; inspector Mariani, a young World War II veteran, enrolls and tries to find out more. He falls for a pretty fellow student, Luisa, but she is the sister of the gang leader...

A bounty hunter name Amen is hired by a group of nuns to recover stolen money. The nuns are female desperadoes in disguise, who want the booty pillaged by an outlaw named Catapult and his gang.

A bizarre mechanic tells a traveler the story of a bank employee, Peppino Biancaneve, who with the help of a disc is trying to put together the words he would like to use to ask for the hand of the daughter of the jeweler Carlo Casertoni, but while he mulls over the sentences he should pronounce to his future father-in-law he comes across a strange individual who could be a bringer of bad luck: a jettatore.