September 1943: in the general confusion a thief dressed as a priest and a sergeant exchange clothes and roles.
Stefano Garbelli is employed by a pharmaceutical company. One evening Daniela, a young independent prostitute, approaches Stefano pretending to be a nurse. They get together, but Daniela has a sinister plan.
A comedy with lots of Neapolitan songs and shots of the Bay of Naples finds Maria Morelli unable to marry her singing sailor/lover, Giacomo because her father, Don Salvatdore Morelli objects. She can't elope because her father has an heart ailment and uses it to hold Maria. Giacomo misunderstands and takes off on a global singing tour.
