After trying to connect with her dead mother, teenager Quinn Brenner, asks psychic Elise Rainier to help her, she refuses due to negotiate events in her childhood. Quinn starts noticing paranormal events happen in her house. After a vicious attack from a demon her father goes back and begs Elise Rainier to use her abilities to contact the other side in hope to stop these attacks by this furious demon content for a body.
Insidious: Chapter 3
A prequel set before the haunting of the Lambert family that reveals how gifted psychic Elise Rainier reluctantly agrees to use her ability to contact the dead in order to help a teenage girl who has been targeted by a dangerous supernatural entity.