When his mother eloped with an Italian opera singer, Louis Mazzini was cut off from her aristocratic family. After the family refuses to let her be buried in the family mausoleum, Louis avenges his mother's death by attempting to murder every family member who stands between himself and the family fortune. But when he finds himself torn between his longtime love and the widow of one of his victims, his plans go awry.
Unfortunately the movie Kind Hearts and Coronets is not yet available on HBO Max.
| Writing | Roy Horniman | Novel |
| Production | Michael Balcon | Producer |
| Directing | Robert Hamer | Director |
| Sound | Ernest Irving | Original Music Composer |
| Writing | Robert Hamer | Screenplay |
| Editing | Peter Tanner | Editor |
| Writing | John Dighton | Screenplay |
| Camera | Douglas Slocombe | Director of Photography |
| Art | William Kellner | Art Direction |
| Production | Michael Relph | Associate Producer |
| Costume & Make-Up | Ernest Taylor | Makeup Artist |
| Crew | Sydney Pearson | Special Effects |
| Costume & Make-Up | Barbara Barnard | Hairstylist |
| Costume & Make-Up | Pearl Orton | Hairstylist |
| Costume & Make-Up | Harry Frampton | Makeup Artist |
| Camera | Jeff Seaholme | Camera Operator |
| Writing | Nancy Mitford | Screenplay |
| Production | Hal Mason | Production Supervisor |
| Editing | Roy Baker | Assistant Editor |
| Production | Leigh Aman | Unit Production Manager |
| Art | Bert Davey | Assistant Art Director |
| Costume & Make-Up | Daphne Martin | Hairstylist |
| Editing | John Jympson | Assistant Editor |
| Editing | Seth Holt | Editorial Services |
| Costume & Make-Up | Anthony Mendleson | Costume Design |
| Directing | Norman Priggen | Assistant Director |
| Sound | Ernest Irving | Conductor |
| Crew | Geoffrey Dickinson | Special Effects |
| Sound | Wolfgang Amadeus Mozart | Music |
| Sound | Stephen Dalby | Sound Director |
| Directing | Phyllis Crocker | Continuity |
| Sound | John W. Mitchell | Sound Recordist |
| Sound | Philharmonia Orchestra | Music |
