The article explains how to watch the six Insidious films, distinguishing between release order and the franchise’s chronological storyline. It matters for viewers planning a marathon because two prequels place earlier in the narrative than their release dates, while recurring characters and the Lambert family connect most of the series.

Chronologically, Insidious: Chapter 3 comes first, followed by The Last Key, Insidious, Insidious: Chapter 2, The Red Door and the new Out of the Further. Peacock reportedly carries the original trilogy, while most other entries are available to rent or buy digitally; Out of the Further is still in cinemas. A proposed spin-off, Thread: An Insidious Tale, was announced in 2023, but there have been few subsequent updates.