While diving for sunken treasure, street-smart gumshoe Tony Rome finds the body of a gorgeous blonde, her feet stuck in a block of cement. Soon after, tough guy Waldo Gronski hires him to find a missing woman named Sandra Lomax, and Rome wonders if there's a connection. He sets about trying to locate the woman, and in no time finds himself mixed up with a beautiful party girl and a slippery racketeer.
| Directing | Gordon Douglas | Director |
| Writing | Marvin H. Albert | Novel |
| Writing | Marvin H. Albert | Screenplay |
| Writing | Jack Guss | Screenplay |
| Production | Aaron Rosenberg | Producer |
| Sound | Hugo Montenegro | Original Music Composer |
| Camera | Joseph F. Biroc | Director of Photography |
| Editing | Robert L. Simpson | Editor |
| Costume & Make-Up | Moss Mabry | Costume Design |
| Art | LeRoy Deane | Art Direction |
| Art | Walter M. Scott | Set Decoration |
| Art | Jerry Wunderlich | Set Decoration |
| Visual Effects | L.B. Abbott | Visual Effects |
| Visual Effects | Art Cruickshank | Visual Effects |
| Production | Michael Romanoff | Production Assistant |
| Sound | Billy May | Orchestrator |
| Production | David Silver | Unit Production Manager |
| Directing | Richard Lang | Assistant Director |
| Sound | Howard Warren | Sound |
| Sound | David Dockendorf | Sound |
| Costume & Make-Up | Daniel C. Striepeke | Makeup Artist |
| Costume & Make-Up | Layne Britton | Makeup Artist |
| Costume & Make-Up | Edith Lindon | Hairstylist |
