FOUR HARD-UP art students, desperate to find more partying space, stumble on an abandoned London property. It doesn’t take long for the gang to realise that they’ve been trapped by a sinister- looking gentleman in white who doesn’t appear to know the first thing about squatters’ rights.

Worse luck; the endangered quartet is made up of good-looking posh kids who say things like “Well, fuck-a-doodle-do”. Are these the kind of folks who make it out of torture dungeons unscathed? We think not.

Director Daniel Simpson’s feature-length debut beats out a pleasing “look behind you” rhythm and knows how to have fun with fake wounds and weaseling camera work. Still, it’s hard to watch this cheap and cheerful British horror without noticing certain eerie similarities to the Saw franchise.

Hang in there and you’ll be rewarded with a neat twist. Until then, it’s been there, done that, bought the Jigsaw T-shirt, survived the sequels and now this . . .