Demons 4K 1985

Cheryl's girlfriend and her friend receive an invitation from a strange man in the subway to show a new horror film about demons, the invasion of which was allegedly predicted by Nostradamus. In the lobby of the cinema, one of the visitors tries on a mask from a mannequin for a joke, and is injured by something sharp inside the mask. What is happening on the screen is strangely reminiscent of what actually happened before the session - the same mask and one of the heroes was hurt by it. Just at the moment when a young man on the screen reads an excerpt from the book of Nostradamus, which tells that everyone who puts on a mask will turn into a demon, the injured visitor becomes ill, and she goes to the restroom and turns into a demon there.