Celeste en Leeann vormen een identieke tweeling. De enige die de zussen van elkaar kan onderscheiden is hun moeder. Wanneer zij sterft, weet Celeste zich geen raad meer. Ze is kapot van verdriet en gaat steeds minder om met Leeann. Een dag voordat de zussen hun yogastudio openen besluit Celeste er even tussenuit te gaan met de charmante Sergio, een man die ook aan yoga doet. De onstabiele Leeann voelt zich in de steek gelaten en bedenkt een duister plan.
Nee, helaas is Twinsanity nog niet beschikbaar op Netflix in Nederland.
| Directing | Buz Wallick | Director |
| Writing | Julian Broudy | Writer |
| Production | Paige Lauren Billiot | Producer |
| Production | Marie Halliday | Executive Producer |
| Production | Buz Wallick | Producer |
| Crew | Panagiotis Konstantakopoulos | Cinematography |
| Production | Michael Moran | Executive Producer |
| Production | Neely Gurman | Casting |
| Sound | Todd Haberman | Music |
| Production | Fernando Szew | Executive Producer |
| Editing | Dave Parker | Editor |
| Production | Shawn O'Brien | Unit Production Manager |
| Sound | Alexander Jongbloed | Foley Editor |
| Art | Jere Sallee | Production Design |
| Production | Elle Jackson | Administration |
| Camera | J.D. Slater IV | Second Assistant Camera |
| Sound | Colin Hart | Sound Mixer |
| Visual Effects | Nick Siebold | Visual Effects |
| Art | Megan Balthazor | Art Direction |
| Sound | Lorita de la Cerna | Foley Artist |
| Visual Effects | Jesse Daniel | Visual Effects |
| Directing | Ryan Romania | Second Second Assistant Director |
| Visual Effects | Dan Jones | Modeling |
| Camera | Michael Moriatis | Still Photographer |
| Sound | Brian S.M. Wroth | Dialogue Editor |
| Costume & Make-Up | Chanèle Casaubon | Costume Design |
| Costume & Make-Up | Hannah Schenck | Makeup Department Head |
| Lighting | Andrew Frick | Electrician |
| Directing | Anthony Arrigo | Second Assistant Director |
| Art | Ariane McDonald | Set Dresser |
| Costume & Make-Up | Kristen Koskell | Assistant Makeup Artist |
| Visual Effects | Janna Daniel | Visual Effects Coordinator |
| Visual Effects | Dustin Solomon | Visual Effects Supervisor |
| Costume & Make-Up | Adriana Bena | Key Hair Stylist |
| Directing | Joshua Lou Friedman | First Assistant Director |
| Sound | Rob Embrey | Sound Post Production Coordinator |
| Camera | Jay Harmon | Grip |
| Camera | Arturo Ochoa | First Assistant Camera |
| Art | Michael Thompson | Property Master |
| Visual Effects | Robert Crisp | Visual Effects |
| Camera | Carlton Hudson | Key Grip |
| Sound | Benjamin Maus | Boom Operator |
| Crew | Tim Mikulecky | Stunt Coordinator |
| Camera | Mike Dumin | Second Assistant Camera |
| Production | Shelby Holt | Casting Assistant |
| Lighting | Lauren Ussery | Best Boy Electric |
| Crew | Lou Chavira | Craft Service |
| Production | Claire Edwards | Production Assistant |
| Directing | April McQuarrie | Script Supervisor |
| Production | Teddy Wynne | Production Assistant |
| Production | Patricia Gutierrez | Production Assistant |
| Crew | Evan Richardson | Set Medic |
| Crew | Tori Letzler | Additional Music |
| Crew | Erica Cox | Driver |
| Editing | Mark T. Osborne | Digital Intermediate Colorist |
| Camera | Kyle Sorvig | Best Boy Grip |
| Lighting | James Swartz | Gaffer |
| Camera | Keith Woolf | Best Boy Grip |
| Costume & Make-Up | Brianna Quick | Costume Supervisor |
