Leigh Whannel is currently filming Insidious Chapter 3 and not only do we have our first look at the film, we’ve got new plot information and a chance for fans to visit the set. The film, which features new characters played Dermot Mulroney and Stefanie Scott as well as returning characters played by Lin Shaye, Angus Sampson and Whannell himself, opens May 29, 2015, It will show events that “predate” what happens in the first two films. Yes, it’s a prequel. Read more about the Insidious Chapter 3 plot and more below.

Here’s your first look at Insidious Chapter 3.

And here’s the full press release on both the film and the contest. I’ll bold the plot details.

Focus Features, Entertainment One (eOne), Sony Pictures Worldwide Acquisitions (SPWA), and Blumhouse Productions announced today that Insidious: Chapter 3 has begun production in Los Angeles. Leigh Whannell, co-creator of the terrifying horror franchise, is writing and directing the new movie.

To commemorate the start of production of the series’ newest chapter, Focus is launching a sweepstakes on the official Insidious Facebook (www.facebook.com/InsidiousMovie) and Twitter (www.twitter.com/InsidiousMovie) pages. Insidious buffs and fans will have the chance to win a trip for two to Los Angeles to visit the set of Insidious: Chapter 3. The contest begins on Tuesday, July 22nd, and ends on Friday, July 25th. The contest’s complete official rules can be accessed at www.focusfeatures.com/article/insidious_set_visit.

Insidious: Chapter 3 stars Dermot Mulroney (of August: Osage County) and Stefanie Scott (of Blumhouse’s upcoming Jem and the Holograms) alongside Lin Shaye, Angus Sampson, and Mr. Whannell, with the latter trio reprising their roles from the first two movies in the franchise.

In Insidious: Chapter 3, a twisted new tale of terror begins for a teenage girl and her family, predating the haunting of the Lambert family in the earlier movies and revealing more mysteries of the otherworldly realm The Further.

Focus Features will release Insidious: Chapter 3 domestically nationwide on Friday, May 29th, 2015. eOne will distribute the picture in Canada, U.K., and Spain; and Sony will distribute the picture in the rest of the world. Jason Blum of Blumhouse, who produced both previous movies in the series, is producing the next installment with returning producer Oren Peli and franchise co-creator James Wan, who directed the two earlier films written by Mr. Whannell with story by Mr. Wan and Mr. Whannell. Brian Kavanaugh-Jones, Steven Schneider, Charles Layton, and Xavier Marchand are executive-producing Insidious: Chapter 3.

Insidious, released in 2011, and Insidious: Chapter 2, released in 2013, grossed a combined $257 million worldwide.

All the contest stuff aside, I like the idea of the film being a prequel. It opens to door to show how Shaye and her team know the ins and outs of The Further and will help to expand some of the series’ mythology.

What do you think of the angle?