In the dark and twisted world of the supernatural, a family finds itself trapped between love and horror. Frank Cotton, an adventurer obsessed with the forbidden, discovers a mysterious box that, when opened, unleashes a group of demonic beings known as the Cenobites, who offer him an experience of indescribable pleasure. However, what initially seems like a journey of pleasure soon turns into a terrifying nightmare.
After Frank's disappearance, his brother Larry and his wife Julia move into the house where it all happened. As Larry struggles with his troubled life, Julia begins to uncover clues about Frank's dark fate. In a chilling twist, Frank returns to life, but not in the way everyone expected: he is decomposed and needs to feed on human blood to regain his full form. Julia, caught up in passion and guilt, agrees to help him in exchange for promises of eternal love and satisfaction.
With the cursed box once again in play, Larry and his daughter Kirsty find themselves entangled in a macabre game where they must confront not only their family's hidden desires but also the terrifying reality of the Cenobites. As chaos ensues, Kirsty becomes the only hope of stopping the hellish dimension that threatens to consume them all. The struggle between desire, betrayal, and horror ultimately reaches an unexpected and heart-wrenching climax.