The Somnus Protocol

To escape the ghosts of his past and the grip of addiction, veteran Ethan Hayes enrolls in a revolutionary treatment at the isolated Gerry Gardens. He hopes for a cure, but finds a prison. The staff are all identical, their smiles never reaching their eyes. The therapy involves a machine that doesn't just treat the mind, it opens it. When patients become vessels for a terrifying cosmic entity, Ethan realizes the only cure is escape. But even if he gets out, the thing they put inside him is coming along for the ride.