Stefanie Scott Launches Sinister New 'Insidious: Chapter 3' Trailer - See The Pics!

Stefanie Scott shows off her long legs as she steps out for the Insidious: Chapter 3 trailer launch event held at The Fillmore Miami Beach on Tuesday night (March 17) in Miami, Fla.

The 18-year-old actress joined host Guadalupe Venegas for a fun Q&A event ahead of the reveal of the new trailer, which you can watch below.

Insidious: Chapter 3 is a prequel in the franchise, set before the haunting of the Lambert family, and 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 (Scott) who has been targeted by a dangerous supernatural entity.

The haunting flick hits theaters on June 5th.

20+ pics inside of Stefanie Scott…