Sony to Adapt Viral Horror Game ‘Mouthwashing’ for Film

WHO:

Engadget - Sony is working on a film adaptation of the indie horror game *Mouthwashing*.

Deadline - Sony Pictures acquired the feature-film rights to *Mouthwashing* from developer Wrong Organ and publisher Critical Reflex.

Deadline - Karyn Kusama, director of *Destroyer*, is attached to direct the adaptation.

Deadline - Matt Manfredi and Phil Hay are adapting the game for the film.

Deadline - Scott Derrickson, C. Robert Cargill, and Vince Cheng are producing through their Crooked Highway banner.

Reddit Movies - A post described the adaptation as being in development with Scott Derrickson and Karyn Kusama.

Collider - The article describes *Mouthwashing* as a horror cult classic and says Scott Derrickson, director of *The Black Phone*, is producing the film.

WHAT:

Engadget - Sony is developing a film adaptation of the viral indie horror game *Mouthwashing*.

Deadline - Sony Pictures acquired the game’s feature-film rights.

Collider - The game is being adapted as a feature film.

Engadget - The film is to be directed by Karyn Kusama and scripted by the writers of *The Invitation*.

HOW:

Deadline - The film is being produced under the Crooked Highway banner.

Deadline - Matt Manfredi and Phil Hay are adapting the game’s story for the screen.

(UPDATED October 30, 2026 10:40 UTC)

Sony Pictures has acquired feature-film rights to the viral indie horror game *Mouthwashing*. Director Karyn Kusama is attached, while Matt Manfredi and Phil Hay are adapting the game. Scott Derrickson, C. Robert Cargill, and Vince Cheng will produce through their Crooked Highway banner.

--

(UPDATED October 30, 2026 01:14 UTC)

Sony Pictures has acquired the feature-film rights to the indie horror game *Mouthwashing* and is developing an adaptation. Karyn Kusama, director of *Destroyer*, is set to direct, with Matt Manfredi and Phil Hay adapting the story for the screen. Scott Derrickson, C. Robert Cargill, and Vince Cheng will produce through their Crooked Highway banner.