While going through a difficult divorce from her domineering, businessman husband, Alexandra moves back into her old childhood brownstone home, where she sets out to uncover dark family secrets from when she was a young girl, involving her Aunt Judith's murder and her mother's descent into insanity. The only clue is a key to a mysterious secret room that lies within the house. As a series of bizarre and unsettling incidents prod Alexandra to investigate her past, she finds herself wandering deeper into danger as her past comes back to haunt her.
Unfortunately the movie Forbidden Secrets is not yet available on HBO Max.
| Directing | Richard Roy | Director |
| Production | Josée Mauffette | Producer |
| Production | Nadia Rona | Casting |
| Sound | Jean-Pierre Pinard | ADR Editor |
| Production | Chanterelle Letellier | Production Coordinator |
| Sound | James Gelfand | Original Music Composer |
| Visual Effects | Marc Cote | Visual Effects Supervisor |
| Crew | Marc Désourdy | Stunt Coordinator |
| Camera | Yannick MacDonald | Still Photographer |
| Directing | Don Terry | First Assistant Director |
| Art | Josée Pilon | Set Decoration |
| Costume & Make-Up | Melissa Purino | Key Makeup Artist |
| Art | Isabelle Létourneau | Art Department Coordinator |
| Art | André Chamberland | Production Design |
| Directing | Sophie Boyer | Script Supervisor |
| Art | Patrick Stoll | Property Master |
| Crew | Guillaume Murray | Special Effects Coordinator |
| Camera | Pierre Jodoin | Director of Photography |
| Production | Vera Miller | Casting |
| Costume & Make-Up | Tahira Herold | Makeup Artist |
| Camera | Denis-Noël Mostert | Steadicam Operator |
| Editing | Yves Langlois | Editor |
| Sound | Michel B. Bordeleau | Supervising Sound Editor |
| Sound | Mario Choquette | Sound Effects Editor |
| Production | Justin Bodle | Executive Producer |
| Production | Anne Carlucci | Executive Producer |
| Production | Stephen Greenberg | Executive Producer |
| Production | Jean Bureau | Producer |
| Sound | Natalie Fleurant | Dialogue Editor |
| Costume & Make-Up | Nicole Pelletier | Costume Designer |
| Production | Serge Denis | Line Producer |
| Production | Jean Bureau | Executive Producer |
| Writing | Karen Craig | Screenplay |
| Directing | Christian Simard | Second Assistant Director |
| Production | Simon-Pier Bélanger | Production Manager |
| Crew | Hélèna Laliberté | Stunt Double |
| Crew | Karine Lemieux | Stunt Double |
| Crew | Frank Gauthier | Stunt Double |
| Directing | Gabriel Teller | Third Assistant Director |
| Directing | Tanya van Blokland | Additional Third Assistant Director |
| Directing | Natalia Ortelli | Additional Third Assistant Director |
| Production | Nadine Lussier | Production Secretary |
| Production | Karoline Morin | Producer's Assistant |
| Production | Desmond Kennedy | Production Accountant |
| Production | Erin Dance | Assistant Accountant |
| Production | Michael Annett | Assistant Accountant |
| Art | Amélie Léonard | Assistant Set Decoration |
| Art | Marc C. De Léry | Property Buyer |
| Art | Véronique Arcouette | Art Department Assistant |
| Crew | Jesse Coull | Vehicles Coordinator |
| Costume & Make-Up | Chantal Cardinal | Extras Dresser |
| Costume & Make-Up | Ginette Duval | Extras Dresser |
| Costume & Make-Up | Eric Poirier | Extras Dresser |
| Costume & Make-Up | Michelle Pépin | Seamstress |
| Production | Pierre Carroll | Location Manager |
| Production | Danielle Duperreault | Assistant Location Manager |
| Production | Ann-Marie Asheim | Assistant Location Manager |
| Camera | Christian Navennec | First Assistant Camera |
| Camera | Isabelle Pépin | Second Assistant Camera |
| Camera | Maurice Roy | "B" Camera Operator |
| Camera | Nicolas Fournier | First Assistant "B" Camera |
| Camera | Mathilde Savard-Cloutier | Camera Trainee |
| Sound | Martin C. Desmarais | Sound Mixer |
| Sound | Pierre Bertrand | Boom Operator |
| Lighting | Alex Amyot | Gaffer |
| Lighting | Jérôme Bouchard | Best Boy Electrician |
| Lighting | Pierre Daudelin | Electrician |
| Lighting | Charles Proulx | Electrician |
| Crew | Yves Ouimet | Generator Operator |
| Camera | Yvon Boudrias | Key Grip |
| Camera | Leo-Denis Carpentier | Grip |
| Camera | Jean-François Sauvageau | Grip |
| Camera | Claude Sauvageau | Grip |
| Camera | Marc Brault | Grip |
| Camera | Joost Clerinx | Additional Grip |
| Camera | Richard Boucher | Additional Grip |
| Camera | Stéphane Sorensen | Additional Grip |
| Camera | Jacques Dupuis | Additional Grip |
| Costume & Make-Up | Hanna Yee | Key Hairdresser |
| Costume & Make-Up | Sabin Paradis | Hairdresser |
| Costume & Make-Up | Loraine Le Comte | Hairdresser |
| Costume & Make-Up | Raymonde Laliberté | Hairdresser |
| Costume & Make-Up | Ronald J. Rolfe | Hairdresser |
| Costume & Make-Up | Ghislaine Sant | Hairdresser |
| Production | Benjamin Sales | Unit Manager |
| Production | Edmond de Lorimier | Assistant Unit Manager |
| Crew | Jean-François Rioux | Set Production Assistant |
| Crew | Denis Roy | Driver |
| Crew | Fanny LaJoie | Driver |
| Crew | Katerine Lambert | Driver |
| Crew | Michel Bachand | Craft Service |
| Crew | Zohra Sebbar | Craft Service |
| Production | Jennifer Pilon | Casting Assistant |
| Production | Linda Rona | Extras Casting |
| Production | André Potvin | Additional Production Assistant |
| Production | Alix Croquet | Additional Production Assistant |
| Production | Alexis Savard-Cloutier | Additional Production Assistant |
| Production | Jean-Nicolas Clarizio | Additional Production Assistant |
| Production | Alexia LeMyre | Additional Production Assistant |
| Production | Lucie Boulanger | Additional Production Assistant |
| Production | Véronique Gagné | Additional Production Assistant |
| Crew | Georges Jardon | Post Production Supervisor |
| Crew | Mélanie Gauthier | Post Production Supervisor |
| Sound | Marc Gagnon | Sound Effects Editor |
| Sound | Simon Meilleur | Foley Artist |
| Sound | Louis Gignac | Sound Re-Recording Mixer |
| Sound | Natalie Fleurant | ADR Supervisor |
| Sound | David Spence | ADR Supervisor |
| Sound | Janice Ierulli | ADR Supervisor |
| Editing | Brigitte Daigneault | Colorist |
| Editing | Nicolas Gauthier | Online Editor |
| Production | Geneviève Dufault | Post Production Coordinator |
| Crew | Heenan Blaikie | Legal Services |
| Crew | Anna-Sue Greenberg | Unit Publicist |
| Sound | Daniel Bisson | Foley Recording Engineer |
