Edmund Blackstone, a horror writer grappling with severe nightmares, retreats to his remote lakeside home with his wife and son for a peaceful respite. They invite friends and some acquaintances for a weekend gathering, aiming to unwind and celebrate Edmund's latest book. However, as night falls, Edmund's oppressive visions seem to bleed into reality when three peculiar figures arrive uninvited. The group consists of the hulking Jackal, the seductive Queen of Evil, and the psychotic dwarf named Spider. These sinister characters resemble those from Edmund’s stories, embodying the terror he writes about but becoming palpably real.

The macabre trio gradually turns the serene retreat into a nightmare, instigating a series of horrific events that pulls everyone into a deadly and psychological game of survival. Edmund and his guests find themselves trapped and tormented by the malevolent forces, which manipulate their deepest fears and secrets against them. Paranoia and dread mount as they realize they must confront not only these menacing apparitions but also their own dark truths. Amid escalating violence and twisted mind games, the line between reality and fiction blurs, culminating in a tension-filled struggle for sanity and life within Edmund's nightmarish world.