Jane Harper (Olivia Cooke) and Brian McNeil (Sam Claflin) in “The Quiet Ones.”Plot: A university professor and a team of students conduct an experiment on a young woman, uncovering dark, unexpected forces in the process.
Cast: Jared Harris, Sam Claflin, Olivia Cooke.
Rating: PG-13 for intense sequences of violence and terror, sexual content, thematic material, language and smoking throughout.
Running time: 1 hour, 38 minutes.