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Focus Features shared the official synopsis and new behind-the-scenes imagery from Insidious: Chapter 3, which will also see the release of its trailer in theaters this weekend.

Leigh Whannell, co-creator of the terrifying horror franchise, directs the third film.

The full cast of Insidious: Chapter 3 includes Dermot Mulroney (August: Osage County) and Stefanie Scott (Jem and the Holograms) starring alongside Lin Shaye, Angus Sampson, and Mr. Whannell, with the latter trio reprising their roles from the first two movies in the franchise.

“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.“

Focus Features will release Insidious: Chapter 3 domestically nationwide on Friday, May 29th, 2015.