Burglar Nat Harbin and his two associates set their sights on wealthy spiritualist Sister Sarah, who has inherited a fortune -- including a renowned emerald necklace -- from a Philadelphia financier. Using Nat's female ward, Gladden, to pose as an admirer and case the mansion where the woman lives, they set up a perfect break-in. Things get complicated afterwards.
| Art | Jim Leonard | Art Direction |
| Writing | David Goodis | Screenplay |
| Camera | Don Malkames | Director of Photography |
| Directing | Paul Wendkos | Director |
| Sound | Sol Kaplan | Original Music Composer |
| Production | Louis W. Kellman | Producer |
| Editing | Herta Horn | Editor |
| Editing | Paul Wendkos | Editor |
| Writing | David Goodis | Novel |
