Demons (1985)

The lure of a free movie at a West Berlin theatre is enough to get a varied collection of Joe Publics gathered under one roof. While the punters are fixated on (or recoiling from) the horror being projected onscreen a similar malevolent atmosphere is forming within the walls of the theatre.
It's a hell of a stylish flick from Lamberto Bava (son of Mario) that entertains even during its awful scenes. The amazing practical effects, cheesy metal music and quality Claudio Simonetti score are all memorable.
Bava's use of dramatic back-lit events make no sense but look great. And even though a large number of things are left unexplained, when the potentially elaborate set-up of the lure is engineered to lead into a simple but effective story of demons killing humans in gory ways, does it even matter?

3½ instruments of evil out of 5