House of Masks.

In hope of an encounter with his co-worker/crush Dekard, awkward college student Jim braves his childhood friend Owen's Halloween house party. Rather than the rendezvous of his dreams, Jim experiences mostly excruciating bouts with personally invasive, costumed attendees. The evening unfolds with an escalating series of altercations between Jim and enemies real, fake, and inanimate, including two-faced Owen. Jim's personal nightmare culminates in bloody conflict with a relentless antagonist, a trip to the ER, and the long overdue unmasking of a bully.