A single mother, and her children, are awoken nightly by an intense presence. She asks her scientist boyfriend to destroy the violent spirit, that paranormal experts are too frightened to take on.
The Diabolical is a 2015 American science fiction horror film directed by Alistair Legrand and written by Legrand and Luke Harvis. It stars Ali Larter as a single mother who battles evil forces in her house. It premiered at SXSW in March 2015 and, after being released internationally, received a limited release in the US in October 2015.