Family Party (2015)

High school senior, Nick gets forced by his parents to attend a boring family party instead of letting him to go a local summer concert with his baseball buddies. He meets a group of teens—including a girl named Arti—who are all stuck at the party too. They soon realize they all have tickets to the same local concert and hash out a plan to sneak out. Their scheme falls apart when they’re met with another jealous childhood friend, a missing diamond necklace and a small religious ceremony put on by the adults. Can they find a way out or is this family party the end of Nick’s night?