A film that - from its basic set-up to its dearth of tension - plays like the tedious inverse of Don't Breathe.

The dreary lack of suspense in this tweaked "Rear Window" scenario, and our inability to care one whit for two cruel, arrogant bullies operating under a perceived notion that they're social scientists, makes this one tough going.

There's not much real suspense stirred here by a premise that straddles recent found-footage thrillers and "Rear Window."

What starts out as a cruel, yet carefully crafted prank, ends in a paranoid delusion with an emotional twist.