In The Diabolical, Ali Larter (Heroes) plays a single suburban mother who is tormented by a strange supernatural presence in her home and turns to her scientist boyfriend to help take on the forces that paranormal experts are too frightened to face. Egad!

Directed and co-written by first-time filmmaker Alistair Legrand, the film also stars Arjun Gupta (How to Get Away with Murder), Merrin Dungey (The King of Queens), and Patrick Fischler (Lost, Silicon Valley) and will be released on Oct. 16. But you can exclusively see the trailer for The Diabolical, above.