Sarah Wayne Callies and Jeremy Sisto star in this thriller about a family living an idyllic existence abroad. Until, that is, a tragic accident takes the life of their young son. The inconsolable mother learns of an ancient ritual that will bring him back to say a final goodbye. She travels to an ancient temple, where a door serves as a mysterious portal between two worlds. But when she disobeys a sacred warning to never open that door, she upsets the balance between life and death.