Berberian Sound Studio

Berberian Sound Studio is a 2012 British horror film. It is the second feature film by British director and screenwriter Peter Strickland. The film, starring Toby Jones, is a psychological thriller set in a 1970s Italian horror film studio.

As time passes, and Gilderoy feels more and more disconnected from his mother at home, he begins to fear hes out of his depth. His colleagues seem increasingly rude to both himself and to each other. The horror sequences grow ever more shocking, yet Santini, the director, refuses to admit they are working on a horror film. And, after a long passage through the bureaucracy of the film studios accounts department, it turns out the plane ticket Gilderoy submitted for a refund cant be processed because the flight didnt actually exist.The plot, from here on in, grows increasingly erratic. Gilderoy hears and sees things in the night. He discovers Silvia, the voiceover artist, was molested by Santini. She storms out, destroying much of their work, forcing Gilderoy to rerecord the dialogue with a new actress, Elisa. As Silvias recording sequences are revisited again, and tension grows between Gilderoy and the others, the boundaries between the blooddrenched giallo thriller and real life begin to erode. Gilderoy imagines he himself is in a film about his life suddenly fluent in Italian and increasingly detached and vicious. After he and Francesco essentially torture Elisa during a recording session, she walks out, leaving history to repeat itself yet again, and Gilderoy to contemplate the monster he has become. ........

Source: Wikipedia