Focus Features has unveiled the creepy new full-length trailer for "Insidious: Chapter 3," which takes the horror franchise back to the very beginning.

Written and directed by series co-creator Leigh Whannell, the prequel focuses not on the Lambert family but rather on a father and daughter (Dermot Mulroney and Stefanie Scott), who turn to psychic Elise Rainier (Lin Shaye) and her team after a dangerous supernatural entity begins to target the teenager.

"Insidious: Chapter 3" opens June 5.