The daughter of Signor Carloni is about to take her first communion. A problem arises when the dressmaker spends too much time working on the girl's communion frock.

When young and attractive Lina Stroppiani, a thief like the rest of her family, tries to steal the taxi of Paolo, together with two accomplices, she can't possibly know that this will have far reaching consequences.

Travelling family man Paolo agrees to pose as husband to an unwed pregnant girl he meets on a train. However, once faced with her father, things do not go as planned.