Major Charles Carrington (David Niven) is arrested for taking £125 from the base safe. He also faces two other charges that could finish his distinguished service career. He decides to act in his own defence at his court martial hearing, his argument being that he is owed a lot of money from the army for his various postings that have cost him out of his own pocket. To further complicate the proceedings, Carrington alleges he told his superior, the very disliked Colonel Henniker, that he was taking the money from the safe. A man's career, his marriage, and quite a few reputations all hang in the balance.

Héros de la Seconde Guerre mondiale, l'officier Charles Carrington en est aujourd'hui réduit à magouiller pour maintenir son train de vie. Contraint de régler lui-même ses frais professionnels, et persuadé qu'on ne l'indemnisera jamais, il s'arrange pour récupérer les sommes déboursées sans passer par les procédures officielles. Le voilà accusé de détournement de fonds et traduit en cour martiale. Son épouse Valérie, une femme amère et frustrée, aggrave son cas en produisant un faux témoignage...

Un erou de război se readaptează cu greu la slujba lui pe timp de pace și ajunge să fure bani de la unitatea sa pentru a-și mulțumi soția egoistă.