Beverly's 21st birthday celebrates with her brothers & closest friends. Everything is going well until an uninvited guest shows up, but that's not all, they soon discover that this situation will be harder than they thought, as they don't know which members can be trusted and their paranoia threatens to tear them apart.

Aimee, beat down by the extravagant birthday demands of her friend group, decides to throw herself the birthday party to end all birthday parties – and she’s inviting a gruesome guest.

Desperate for cash, five young friends enter a creepy murder house for a $25K dark web contest, only to end up in a brutal fight for their lives against a 7-foot-tall religious maniac with a sledgehammer who's out to kill all sinners.