Raw Meat (1973) aka Death Line

Another influential and ahead of its time horror movie, Raw Meat would pave the way for countless stories about underground mutants killing people in the subways, like C.H.U.D.(1984), (see my review) Creep (2004), and Clive Barker's short story and film The Midnight Meat Train (2008), and even The Descent (2005) takes a page from this film's book. When an important member of the British government goes missing in a subway station, the local police force takes the matter into their hands, and a somewhat manic Donald Pleasance (The Great Escape, Halloween) leads the investigation. Sir Christopher Lee also makes an appearance in the film, though his is much smaller. It turns out the lone survivor of a group of construction workers that got stuck in the subway tunnels many years ago (for so long

  that the survivors resorted to cannibalism and inbreeding to survive) is responsible for the recent disappearances and murders in the subway. This movie is surprisingly funny, Donald Pleasance is a real hoot, and there are also times when the audience is called to feel empathy or even sympathy for the cannibal killer, (and it is rather effective at doing so), and then of course there are times when the film's atmosphere (dark London subways) is very disturbing/unsettling  and freaky. This film was ahead of its time for the amount of graphic detail and gore it shows. There are some plot holes if you look hard enough and try to scientifically analyze everything, but you shouldn't be doing that for this film anyway. I thoroughly enjoyed it even though I don't like gore (the gore is ahead of its time but not necessarily a lot by today's standards), I would recommend watching this one in total darkness though, because I watched almost the whole thing with a light on, and then turned it off for the last 20 minutes or so, and it was a lot freakier in the dark.The monster could have seemed less human  Also you'll never think of/hear the line "Mind the doors!" the same way again. I give it a 4.25/5. This film is mentioned in Rue Morgue magazine's 200 Alternative Horror Films You need to See. You can view the trailer below: