The Sect Movie (1991)

The Sect Movie (1991) trailer - Plot synopsis: A spree of grisly murders is perpetrated in Frankfurt by a group of Satan worshippers. A school teacher almost runs over an old man with a box and takes him in. It's no accident that the old man has come into her life, and it quickly becomes apparent that he has plans for her, plans that involve a permanent future with the Satanic cult.

a film by Michele Soavi
with Kelly Curtis, Herbert Lom, Tomas Arana, Mariangela Giordano