Robert Wagner plays an American who owns a Lisbon nightclub and Teri Garr is a slightly dippy chanteuse who has stumbled across a Nazi plot to kidnap the Duke and Duchess of Windsor, living at the time (1942) in Portugal.
You can now watch To Catch a King online on the following streaming providers in the United States.
| Sound | Nick Bicât | Original Music Composer |
| Writing | Roger O. Hirson | Writer |
| Directing | Clive Donner | Director |
| Camera | Dennis C. Lewiston | Director of Photography |
| Directing | Claire Denis | First Assistant Director |
| Production | Marc Monnet | Producer |
| Production | Thomas M.C. Johnston | Producer |
| Production | William F. Storke | Producer |
| Production | Alfred R. Kelman | Producer |
| Sound | Nick Bicât | Music |
| Editing | Peter Tanner | Editor |