the quiet ones (2014)

"Why do I get the impression this is about to get unpleasant? "
University professor (Jared Harris) and a group of his students try to expel a malevolent from young woman Jane Harper (Olivia Cooke), but only succeed in uncovering terrifyingly dark forces.
An interesting story, supposedly based on true events, but one that only contains some mild shocks along the way.