Three neighborhood kids, DJ, Chowder, and Jenny, observe suspicious activity around a creepy, old house owned by the cantankerous Mr. Nebbercracker. After Nebbercracker is taken to the hospital, the house appears possessed, drawing in and consuming anything that comes near it. With Halloween approaching and unaware of the danger, neighborhood children are at risk. The trio becomes increasingly convinced that the house itself is alive and malevolent. They begin investigating, only to find themselves continually thwarted by the house's seemingly supernatural abilities.

Undeterred, the kids seek help from adults but are brushed off as having overactive imaginations. Determined to uncover the truth, they engage in several perilous attempts to get closer to the house to collect evidence or find a way to stop its rampage. Their plans lead them to discover intricate details about the house’s origins and the tragic backstory that built its vengeful animus. Each revelation heightens their sense of urgency to find a solution before more lives are in danger, turning their innocent curiosity into a desperate mission.