Insidious: Out of the Further opened in theaters on August 20, 2026. The sixth installment expands the story beyond the Lambert family to center on a new protagonist, Gemma, and her family’s link to the Further, a parallel dimension populated by demons.

Cyrus Lem, a cult leader with long black hair and rings, haunts Gemma’s family, killing her mother early and later kidnapping her daughter Maya. In the climax, Gemma uses family abilities to trap the demons inside her house, transport the structure into the Further, and rescue Maya while leaving Cyrus surrounded by the creatures.

The post‑credits scene returns to Cyrus in the Further, where a demon forces him onto a dental chair and drills into his teeth, showing that the demons act without loyalty. The scene also includes a cameo by KeyFace, a demon from a prior film, who locks Cyrus in the chamber as the franchise’s red door appears.

Insidious: The Red Door earned the highest box‑office revenue for the series and was a leading horror release in 2023. If Out of the Further achieves comparable box‑office results, the franchise may continue under James Wan and Leigh Whannell. An announced spin‑off titled An Insidious Tale starring Mandy Moore and Kumail Nanjiani is in development, though its status remains undetermined.