Confined on her family’s yacht, Samantha endures a relentless nightmare, repeatedly subjected to the harsh and agonizing commands of the vessel’s alarm system. Each night plunges her further into a world of moral corruption, and every morning she awakens to new, disfiguring marks from the previous night’s terror. Haunted by a lost memory, she grapples with a haunting question: “Am I responsible for my family’s death, or has Hell made a mistake?”