A group of friends decide to ring in the New Year at an extravagant 80s-themed party hosted in a remote warehouse at the edge of town. As the night unfolds, they quickly realize they are not alone. Trapped in a labyrinth of neon lights and retro nostalgia, they find themselves hunted by a merciless killer hell-bent on making sure they never see another year.

A young couple going through relationship problems hires a renowned sex therapist to help them work through their issues.