It's What's Inside (Netflix)

A group of college friends gather at an old mansion for a pre-wedding party. To liven things up, their techie friend Forbes (David Thompson) arrives with a mysterious game in a suitcase. He explains that once they all place two wired pads on their heads that attaches to a machine in the suitcase and he flips a switch, they'll switch bodies.

Full of alcohol and in high spirits, they all think it's a great idea, except for Shelby (Brittany O'Grady), who needs some convincing. Once they've switched bodies, they try to figure out who is in which body, and take a polaroid of who they really are to put on their shirt.  

The game descends into an existential nightmare that awakens long-hidden secrets, desires, and grudges.