On the beach one night, Christine Faber, two years a widow, thinks she hears her late husband Paul calling out of the surf...then meets a tall dark man, Alexis, who seems to know all about such things. After more ghostly manifestations, Christine and younger sister Janet become enmeshed in the eerie artifices of Alexis; but he in turn finds himself manipulated into deeper deviltry than he had in mind...
Unfortunately the movie The Amazing Mr. X is not yet available on HBO Max.
| Sound | Irving Friedman | Music Director |
| Costume & Make-Up | Joan St. Oegger | Hairstylist |
| Writing | Muriel Roy Bolton | Screenplay |
| Writing | Ian McLellan Hunter | Screenplay |
| Production | Benjamin Stoloff | Producer |
| Directing | Bernard Vorhaus | Director |
| Writing | Crane Wilbur | Story |
| Editing | Norman Colbert | Editor |
| Camera | John Alton | Director of Photography |
| Sound | Alexander Laszlo | Original Music Composer |
| Crew | Stewart Stern | Other |
| Sound | Frank McWhorter | Sound |
| Costume & Make-Up | Frank Westmore | Makeup Artist |
| Sound | Leon Becker | Sound |
| Costume & Make-Up | Ern Westmore | Makeup Artist |
| Costume & Make-Up | Bud Westmore | Makeup Artist |
| Art | Frank Durlauf | Art Direction |
| Art | Armor Marlowe | Set Decoration |
| Production | James T. Vaughn | Production Supervisor |
| Art | Clarence Steensen | Set Decoration |
| Directing | Ridgeway Callow | Assistant Director |
