Facing her most terrifying haunting yet, parapsychologist Dr. Elise Rainier is called back to her childhood home to confront the demons of her past in "Insidious: The Last Key." As she delves deeper into the mysteries of the supernatural realm, Dr. Rainier must unlock the secrets of the haunted house that has plagued her for years. With the help of her team, she embarks on a spine-chilling journey to uncover the truth behind the malevolent forces that threaten not only her sanity but also her very existence. Haunted by her own traumatic experiences and armed with her unique psychic abilities, Dr. Rainier must navigate a treacherous landscape of spirits and specters to save herself and others from the evil that lurks within the shadows. As she uncovers the dark secrets buried within the house, Dr. Rainier must confront her own fears and past mistakes to put an end to the terror once and for all. "Insidious: The Last Key" is a heart-pounding supernatural thriller that will keep you on the edge of your seat until the very last key is turned.