During the Cold War, an American scientist appears to defect to East Germany as part of a cloak and dagger mission to find the formula for a resin solution, but the plan goes awry when his fiancee, unaware of his motivation, follows him across the border.
| Directing | Alfred Hitchcock | Director |
| Production | Alfred Hitchcock | Producer |
| Sound | John Addison | Original Music Composer |
| Camera | John F. Warren | Director of Photography |
| Editing | Bud Hoffman | Editor |
| Art | Hein Heckroth | Production Design |
| Art | Frank Arrigo | Art Direction |
| Art | George Milo | Set Decoration |
| Writing | Brian Moore | Writer |
| Costume & Make-Up | Jack Barron | Makeup Supervisor |
| Costume & Make-Up | Lorraine Roberson | Hairstylist |
| Production | Jack Corrick | Unit Production Manager |
| Directing | Donald A. Baer | Assistant Director |
| Camera | Leonard J. South | Camera Operator |
| Costume & Make-Up | Edith Head | Costume Design |
| Costume & Make-Up | Grady Hunt | Costume Supervisor |
| Directing | Lois Thurman | Script Supervisor |
| Costume & Make-Up | Hal Saunders | Hairstylist |
| Sound | William Russell | Sound |
| Sound | Waldon O. Watson | Sound |
