Watch Gerard Butler, Peter Mullan, and Connor Swindells in the trailer for Keepers

Set on an uninhabited island 20 miles from the rugged Scottish coast, Keepers tells the story of three lighthouse keepers who stumble on something that isn’t theirs to keep. What follows is an isolation and paranoia-fed battle for survival as the men venture down a path of destruction.

Based on the Flannan Isle mystery, the film is directed by Kristoffer Nyholm (The Killing). Keepers stars Gerard Butler, Peter Mullan, Connor Swindells, and Ólafur Darri Ólafsson.