Two men pull off a daring daylight payroll heist in Milan, making a fast getaway. One is returning to France after years in hiding, needing money to start fresh with his family.

Marceau Léonetti, a competent and energetic officer stops by chance the son of an influential lawyer driving under the influence of alcohol. A few months later, the lawyer falsely accuses Léonetti as being violent and incompetent. As a result Marceau is transferred to a small police station, where he meets young and beautiful Jeanne. Soon they are faced with a tough investigation.