Insidious: The Last Key (2018) follows Elise who returns to the house that she grew up in to investigate paranormal occurrences experienced by the current owner.
Insidious Chapter 3 (2015)
Insidious: Chapter 3 (2015) follows Quinn Brenner who asks Elise for help in contacting her deceased mother leading up to paranormal events.
Insidious: Chapter 2 (2013)
Insidious: Chapter 2 (2013) shows the Lamberts after the events of the first film as well as a woman who has been haunting Josh.
Insidious (2010) follows Josh and Renai Lambert as they deal with paranormal encounters while supernatural beings desire to inhabit their son.