Overview
Stage Fright is a 1987 Italian slasher film directed by Michael Soavi, and starring Barbara Cupisti, David Brandon, and Giovanni Lombardo Radice. The plot involves a group of stage actors and crew who lock themselves inside a theater for rehearsal of a musical production, unaware that an escaped mental patient is locked inside with them.
Plot
Late at night, inside a theater, a troupe of actors and crew consisting of the director Peter, Alicia, Mark, Sybil, Betty, Corinne, Laurel, Danny, Brett, and Ferrari are rehearsing a musical about a fictional mass murderer known as the Night Owl. Peter is very dominating over the group and tries to keep them from leaving under any circumstances without his permission. When Alicia sprains her ankle, she and Betty sneak out of rehearsal for medical assistance, the closest being a mental hospital. When speaking to the psychiatrist, Betty notices an imprisoned patient named Irving Wallace, a former actor who had gone insane and committed a killing spree. Unbeknownst to any of them, Wallace killed one of the attendants with a syringe and snuck out of the asylum to hide inside Betty's car.
Upon returning, Peter fires Alicia for leaving during the rehearsal. Outside, Betty returns to the car only to be murdered by Wallace with a pickaxe to the mouth. Moments later, Alicia finds her body and contacts the police. The body is removed, and two officers are stationed outside the premises.
Meanwhile, Peter creates an idea by altering the play's script; he renames the show's antagonist to Irving Wallace instead of an ambiguous killer and insists that everyone (including rehired Alicia) stay the night to begin immediate rehearsals with the new material. The group reluctantly agrees to stay with the promise of additional cash, and Corinne hides the theater's exit key. While changing her costume, Laurel is stalked by a shadowy figure whom she thinks to be Brett. Brett then stays behind to search for his costume, not noticing Wallace donning the theater's owl costume behind him.
From Wikipedia (CC BY-SA 4.0).