A couple are given a camera and a set of instructions which they must follow or else someone will die.
Direction
Bertino squeezes genuine panic from a $5 premise.
Practical Effects
That clown mask will live rent-free in your nightmares.

Director
Bryan Bertino
Trivia, insights & behind the scenes
Bryan Bertino wrote and directed The Strangers (2008), and this shares its cruel randomness—home invasion trauma is clearly his brand.
The 81-minute runtime was likely mandate, not choice; Blumhouse-era horror learned that under-90 minutes maximizes profit-per-screening. Art suffers, wallets rejoice.