Lena lives in complete seclusion in a high security house with the two children Hannah and Jonathan. They eat, go to the toilet and go to bed at precisely prescribed times. As soon as a mysterious man enters the room, they line up to show their hands. They do whatever he says. Until the young woman manages to escape. After a near-fatal car accident, she is admitted to the hospital accompanied by Hannah. When Lena's parents arrive at the hospital, investigators discover the dark truth behind an unsolved disappearance thirteen years earlier.