The widow of a murdered undercover NATO officer in Greece is the prime suspect in his killing. She finds herself embroiled in a bigger conspiracy about the sabotage of U.S. radar installations while trying to prove her innocence.
| Directing | Claude Chabrol | Director |
| Writing | Claude Brulé | Writer |
| Writing | Daniel Boulanger | Writer |
| Editing | Jacques Gaillard | Editor |
| Camera | Jean Rabier | Director of Photography |