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Hey, kids – leave those teachers alone!

School’s out forever in this British chiller, which sees the faculty of a rundown comprehensive stalked and slashed by faceless hoodies.

Troubled David Schofield is among the staff targeted in the after-hours mayhem, staged with faint vim or invention by director Johannes Roberts.

And while there’s the occasional gory shock – an assistant with her jaw ripped off, for instance, or the janitor set on fire in a dumpster – there’s little here to make you want to tick F off the list of wearily similar horrors on which it belongs

Neil Smith is a freelance film critic and writer who contributes regularly to Heat, SFX and Screen International. He's a long-time member of the London Film Critics’ Circle and was a contributing editor at Total Film for many years.