From the producers of The Purge and Insidious, comes this terrifying supernatural thriller starring Kevin Bacon (TV’s The Following) and Radha Mitchell (Silent Hill). When their young son (David Mazouz, TV’s Gotham) brings home five mystical stones he found on their family’s camping trip to the Grand Canyon, Peter (Bacon) and Bronny (Mitchell) begin to notice strange things happening in their house. Having awakened dark forces bound to the rocks, the family fights for survival as malicious demons feed off their fears and threaten to destroy them.