A criminal scheme gone wrong is just the start of a string of life-threatening bad luck in this darkly comic thriller. David (Andy Serkis) and Peter (Reece Shearsmith) are a pair of second-rate criminals who are eager to make a big score and think they've come up with the formula for a perfect crime.
David works for a wealthy local businessman named Arnie who dotes on his teenaged stepdaughter Tracey (Jennifer Ellison), and so with the help of Arnie's slacker son Andrew (Steven O'Donnell), he and Peter kidnap the girl and demand a hefty ransom for her safe return.
But Tracey puts up far more of a fight than David and Peter ever expected, and when Andrew picks up the ransom only to discover they've been given a decoy instead of cash, the would-be kidnappers have no clue what to do next.
But this problem seems like small potatoes when the owner of the seemingly abandoned cottage where they're holed up unexpectedly returns -- he turns out to be a hideously deformed lunatic with a murderous temper and a bitter hatred of trespassers.