Sony Pictures Entertainment has acquired the film rights to the indie horror game Mouthwashing from developer Wrong Organ. Karyn Kusama, known for Jennifer's Body and The Invitation, is attached to direct. The screenplay will be written by Matt Manfredi and Phil Hay, the duo behind The Invitation, and produced by Scott Derrickson, the director of The Black Phone and Sinister. Mouthwashing is a grounded horror project about a stranded spaceship crew gradually losing their grasp on reality, notable for its heavy themes and surreal imagery. The game released on PC in 2024 and is now available on Nintendo Switch, PlayStation 5, Xbox Series X/S, and via Xbox Game Pass. No release date for the film has been announced.