Miriam DeKalb, the daughter of a powerful and sadistic businessman, finds herself the lone survivor after her father orchestrates a brutal massacre of her siblings. After barely escaping with her life, Miriam is approached by a mysterious entity known as the Gamemaster, who offers her a chance to go back in time and alter the course of events that led to the tragedy. Seizing this extraordinary opportunity, Miriam relives the harrowing night and tries to save her brothers and sister, navigating labyrinthine traps and gruesome challenges set by her cruel father.

As Miriam battles through these terrifying tests, she encounters both allies and foes in unexpected places. Her determination is tested as the Gamemaster and other supernatural beings manipulate the unfolding chaos for their own entertainment and gain. With time running out and the stakes growing higher, Miriam must use all her wits and courage to outsmart the formidable forces arrayed against her, striving to rewrite her family's destiny and survive the nightmarish ordeal once and for all.