WHAT'S IT ABOUT? Nightmare on London Underground, and we're not talking about delays and stained seats, but a gnarled, rampaging maniac who makes Freddie Krueger look like a boyband pin-up.

ANY GOOD? Simple and predictable premise but picks up with a gruesome second half.

ANY SICK BITS? Oh yes. There's an incredibly vile 'surgery' scene involving spread legs and a whopping great blade. Luckily for your tum tum, you don't see much.

EXTRAS: Featurettes, commentaries and an alternative ending.

TRAILER: Click on 'Video'.