Gilderoy, a British sound engineer, travels to Italy to work on the post-production of a mysterious horror film. Used to gentle nature documentaries, Gilderoy finds himself in the unsettling world of Italian giallo cinema, where gruesome imagery and eerie sound effects dominate. His work environment, the titular studio, is claustrophobic and filled with eccentric characters, all contributing to the sinister ambience. As Gilderoy becomes immersed in creating the unsettling audio for the film, he begins to experience increasing difficulty separating his own reality from the macabre world of the movie.

The project swiftly takes a toll on Gilderoy’s mental health. He becomes haunted by the disturbing sounds he is tasked with producing, and communication barriers with his Italian colleagues exacerbate his sense of isolation. As the line between film and reality blurs, Gilderoy confronts his deepest fears, spiraling into paranoia and confusion. His struggle to maintain his sanity in the face of relentless auditory and psychological pressures creates a tense and unnerving atmosphere, leaving audiences to ponder the true nature of his descent into madness.