Dane and his younger brother Lucas discover a mysterious, seemingly bottomless hole in the basement of their new home. Initially, the boys, along with their neighbor Julie, are intrigued by the hole and decide to explore it further. As they experiment with lowering objects into it, they soon begin to experience unsettling occurrences around the house. The hole appears to be a portal to their deepest fears and darkest secrets.

As the trio confronts increasingly terrifying visions, they realize that the hole can manifest their worst nightmares into reality. Haunted by their personal demons, they struggle to find a way to close the hole before their lives are consumed by fear. With each attempt to seal the ominous opening, they uncover more about its origins and the sinister forces it harbors, leading to a climactic confrontation that will test their bravery and determination.