A tragic car accident in the 1940s claims the lives of a young girl and her mother, leaving behind a family haunted by grief and loss. Fast forward to the present day, where George, his wife Vivian, and their daughter Cathy move into his childhood home, which has lain dormant since the incident. Cathy, exploring the mansion, stumbles upon an old doll and a portrait of her deceased Aunt Laura, sparking an unsettling change in her demeanor. Strange occurrences begin to unfold within the household, and Vivian's mental health starts to deteriorate as she experiences a series of unexplainable events.

George remains skeptical about the paranormal activities surrounding them, attributing his wife's fears to her fragile state of mind. However, as Cathy's behavior becomes increasingly malevolent and otherworldly, it becomes clear that malevolent forces tied to the past are influencing her. The family struggles to maintain normalcy amid escalating terror, and the dark history of their ancestral home looms ever larger, threatening to consume them all.