In wartime, an English spy must go into neutral territory to murder a fellow-Englishman who has been working for the enemy.
| Actor | Role |
|---|---|
 Mai ZetterlingFrau Caypor | Frau Caypor |
 Donald PleasenceGrantley Caypor | Grantley Caypor |
 Stephen MurrayAshenden | Ashenden |
| EEric LanderGustav | Gustav |