8:13 minutes
A guy works in a convenience store. He cleans up and stocks the shelves. A man comes in and walks straight to the restroom. About this time, the monitors start acting up, showing the man in various places in the store, when he’s clearly in the restroom. He sees the man, wearing a mask, walk up to the counter with a knife. He gets right up to the clerk, then vanishes. What’s up?
It’s creepy, well-shot and well-acted, and just the right length. Not only that, but it doesn’t try to explain everything.