During an exclusive tour, a power breakdown inside a secret prison known as the Death House sends two agents fighting through a labyrinth of horrors while being pursued by a ruthless army of roaming inmates. As they fight to escape, the agents push toward the lowest depths of the facility where they learn a supernatural group of evil beings are their only chance for survival.
The film tells the story of 15-year-old Robin, a virtuoso piano player, and her mother Claire, who lives for her and is her biggest fan. When Robin is the victim of a serious accident, their life will undergo a sudden change.