Insidious: Chapter 6 delves deeper into The Further, bringing back familiar faces and introducing new characters to confront its darkest forces yet. The film picks up after the events of Insidious: The Red Door, with the Lambert family once again trying to move on from their terrifying past, but evil refuses to let them go.
Dalton Lambert (Ty Simpkins), now a young adult, continues to suffer from strange dreams and unsettling visions despite sealing the Red Door in the last movie. He has moved away for college, but the lingering connection to The Further grows stronger, disrupting his life. When strange occurrences begin haunting him and his loved ones, Dalton realizes that closing the Red Door wasn’t enough—something far worse was left behind.
Meanwhile, Elise Rainier’s (Lin Shaye) protégé, Imogen, returns to the story, still honing her psychic abilities. Imogen senses a powerful entity rising within The Further, one that even Elise couldn’t defeat when she was alive. With Dalton as a key to this entity’s power, it becomes clear that he must confront his past and fully embrace his ability to astral project to stop it once and for all.
The movie’s central twist comes when Dalton discovers a shocking truth: the Red Door wasn’t just a portal to The Further, but a prison for a malevolent force that predates the entities the Lamberts had faced before. This ancient evil, known as “The Devourer,” has escaped, and its goal is to use Dalton as a vessel to bridge the gap between the living world and The Further, unleashing its chaos on humanity.
In a climactic battle within The Further, Dalton, with the help of Imogen and the spirit of Elise, faces off against The Devourer. The stakes are higher than ever as they fight not just for Dalton’s soul but to prevent the complete collapse of the barrier between the two realms. The ending sets up a potential continuation of the series with a dark and chilling final moment that suggests The Devourer’s influence may still linger.