Nelly McDermott, the granddaughter of a prominent politician, loses her husband, architect Adam Cauliff, in a fiery boat explosion. When she's informed that he was murdered, Nell is compelled to find the killer by searching for the truth, with the help of a psychic, which could solve the mystery — or end her life.
Unfortunately the movie Before I Say Goodbye is not yet available on HBO Max.
| Writing | Mary Higgins Clark | Novel |
| Directing | Michael Storey | Director |
| Production | Leanne Arnott | Producer |
| Production | Stephen Arnott | Producer |
| Crew | Carol Chestnut | Legal Services |
| Crew | Patricia Warsaba | Legal Services |
| Costume & Make-Up | Maria Livingstone | Costume Designer |
| Production | Jennifer Page | Casting |
| Editing | Jana Fritsch | Editor |
| Crew | Garvin Cross | Stunt Coordinator |
| Crew | Chris Webb | Stunts |
| Art | Andrew Deskin | Production Design |
| Production | Lance H. Robbins | Executive Producer |
| Production | Aaron Griffith | Casting |
| Camera | David Pelletier | Director of Photography |
| Production | Simon Abbott | Line Producer |
| Production | Corinne Clark | Casting |
| Directing | Lucy MacLeod | Script Supervisor |
| Production | Bruce Cohn Curtis | Executive Producer |
| Directing | Derek Hurst | Second Assistant Director |
| Production | Philip Doerksen | Co-Producer |
| Directing | Blair Freeman-Marsh | First Assistant Director |
| Crew | Darcy Davis | Special Effects Coordinator |
| Production | Crawford Hawkins | Co-Producer |
| Production | David Doerksen | Executive Producer |
| Art | Ian Nothnagel | Set Decoration |
| Production | Laurie Watt | Production Accountant |
| Sound | Greg Stewart | Sound Re-Recording Mixer |
| Production | Thierry Tanguy | Location Manager |
| Camera | Stuart Lennox | Key Grip |
| Crew | John Johnston | Transportation Coordinator |
| Art | David Perun | Property Master |
| Crew | Suzanne McGovern | Craft Service |
| Camera | David Giesbrecht | Still Photographer |
| Camera | Cliff Hokanson | Steadicam Operator |
| Lighting | Darren McLean | Gaffer |
| Sound | David Novack | Sound Re-Recording Mixer |
| Costume & Make-Up | Melanie Burke | Hairstylist |
| Camera | Cliff Hokanson | "A" Camera Operator |
| Costume & Make-Up | Diana Davison | Makeup Artist |
| Production | James Forsyth | Extras Casting |
| Editing | Ernie Moser | Colorist |
| Sound | Donald Painchaud | Sound Mixer |
| Production | Helen MaComb | Production Coordinator |
| Sound | Greg Stewart | Sound Supervisor |
| Writing | Ali Marie Matheson | Screenplay |
| Writing | Jon Cooksey | Screenplay |
| Writing | John Benjamin Martin | Screenplay |
| Sound | Claude Foisy | Original Music Composer |
