After years of killing for a man only known as "The Boss", Serena is burnt out. When she is hired for one final job, she teams up with an underground renegade group to stop her replacement from executing the assassination.

A group of friends make a bet to see who can survive camping on an island for a night. Unbeknownst to them, a strange creature lurks throughout the night terrorizing their every move, and sound is their biggest enemy.