IFC Midnight acquired rights in June to Dennis Iliadis’ +1, a thriller that had its debut this year at SXSW. Scripted by Bill Gullo from a story by Iliadis, the pic stars The Purge‘s Rhys Wakefield, Logan Miller, Chronicle’s Ashley Hinshaw and Natalie Hall about college buds who go to the biggest party of the year, where a mysterious phenomenon occurs that turns the bash into a chaos that challenges their friendships and life expectancies. Here’s the trailer that premiered today: