In a small New England town, a group of college students become intrigued by local legends and eerie stories surrounding a long-abandoned mansion. Randolph Carter, a curious scholar passionate about the occult, regales his friends with tales of a mysterious creature said to have once lived in the old house. Despite warnings and eerie omens, curiosity gets the better of the group, prompting a few of them to explore the mansion. Those who venture inside begin to sense a malevolent presence as they uncover strange artifacts and ominous signs that hint at something beyond their understanding.

As night falls, the friends find themselves trapped within the dark confines of the mansion, hunted by an unseen force. The atmosphere grows increasingly intense as they struggle to survive against the horrifying entity that lurks in the shadows. Desperation sets in as they try to find a way to escape and solve the ancient mystery that binds the creature to the mansion. While some members of the group succumb to the sinister nightmares, others musters courage to face the unknown horror and confront the gruesome truth behind the legend.