Young Elise lives in Five Keys, New Mexico, with her brother Christian and parents Audrey and Gerald. Her father, a prison executioner, severely punishes her for claiming to see the spirits of executed inmates. One night, a demonic entity known as lures Elise to a red door in the basement. When she opens it, she inadvertently releases the demon, which possesses her and kills her mother. Fearing her father's continued abuse, a teenage Elise eventually flees, leaving Christian behind to suffer alone. The Investigation (Present Day)
: While investigating, Elise discovers that the "haunting" is not just spiritual. She finds a real woman chained in the basement, revealing that Ted Garza—influenced by the same demon that corrupted her father—has been kidnapping and imprisoned women for years. Insidious: The Last Key
Decades later, Elise receives a call from Ted Garza, the current owner of her childhood home, who is experiencing terrifying paranormal activity. Alongside her partners Specs and Tucker, she returns to the house to face the darkness she helped unleash. Young Elise lives in Five Keys, New Mexico,
