They will make cemeteries their cathedrals and the cities your tombs!
Italian horror mastermind Dari Argento produced and co-wrote (with director Lamberto Bava) this nightmarish film set in the 'Metropol', a huge, cathedral-like Berlin cinema.
Two girls are given free tickets to a special screening in an isolated movie theatre. The film, a violent horror movie, exerts a malevolent influence over the theatre patrons who are transformed, one by one, into a horde of crazed demons.