"Lights Out," which is based on the 2013 short film of the same name by David F. Sandberg, is about a woman named Rebecca who discovers that her mother is being haunted by a ghost named Diana. As a result, she takes on the responsibility of protecting her stepbrother, Martin, from their mother and the mysterious entity. The creature can only be seen in the dark and disappears when the lights are turned on. As Rebecca tries to help her family, she's forced to confront her traumatic past as well.
Watch "Lights Out" on Netflix now.