A New York executive, Martha, witnesses a murder and discovers that the killer is her new brother-in-law. When her sister is nearly killed and her sister's children kidnapped to silence her, she must unravel the mystery behind the murder to save the kids and see justice served.
Unfortunately the movie Deadly Family Secrets is not yet available on HBO Max.
| Art | John Frick | Production Design |
| Costume & Make-Up | Shelley Komarov | Costume Design |
| Directing | Richard T. Heffron | Director |
| Writing | Franklin Coen | Novel |
| Editing | Christopher Nelson | Editor |
| Art | Adele Plauche | Art Direction |
| Writing | Brian Taggert | Teleplay |
| Production | Melinda Gartzman | Casting |
| Directing | Patricia A. Fullerton | Script Supervisor |
| Camera | Stevan Larner | Director of Photography |
| Sound | Nan Schwartz | Original Music Composer |
| Production | Dennis Stuart Murphy | Producer |
| Production | Jack H. Degelia | Producer |
| Production | Michael Filerman | Executive Producer |
| Crew | David Sanders | Stunt Coordinator |
| Lighting | Robert Driskell | Gaffer |
| Crew | Laura King | Stunt Double |
| Crew | Mark Kay | Stunts |
| Crew | Jackson Burns | Utility Stunts |
| Crew | Jody Haselbarth | Stunt Double |