It is one of the most disturbing and difficult films I have had to sit through as you watch a prank caller manipulate staff at a fast food outlet into committing humiliating and heinous acts on a young and defenceless colleague just for kicks.
But there is nothing titillating or gratuitous about Craig Zobel's taut psychological drama. The facts of the story speak for themselves as you observe restaurant manager Sandra (Ann Dowd) and her employee Becky (Dreama Walker) be masterfully played by a man impersonating a police officer.
Why didn't they say no and hang up on him? I doubt anyone would have because of a fear of going against authority and losing your job at a time when you can't afford to.
This was one of 70 similar hoax calls made to fast-food establishments in the US and every victim fell for it.
If you've the stomach for it, stay until the very end as Compliance raises poignant questions that will linger with you long after the credits have rolled.