The folks behind Insidious 3 released this trailer at Wondercon Anaheim 2015, as well as a new poster.
As always, here is the synopsis:
Written and Directed by Leigh Whannell
Starring Dermot Mulroney, Stefanie Scott, Angus Sampson, Leigh Whannell, Lin Shaye
The newest chapter in the terrifying horror series is written and directed by franchise co-creator Leigh Whannell. This chilling prequel, set before the haunting of the Lambert family, reveals how gifted psychic Elise Rainier (Lin Shaye) reluctantly agrees to use her ability to contact the dead in order to help a teenage girl (Stefanie Scott) who has been targeted by a dangerous supernatural entity.
Insidious 3 comes to theaters June 5, 2015.