"David" (David Naughton) and his pal "Jack" (Griffin Dunne) are taking a walking tour of the UK when they decide to stop off at a pub. They are about as welcome as a dose of the clap and after a few minutes banter with the natives decide they are better off walking. The thing is, those inside know how dangerous it's about to be out there - and the boys soon find out. It's "David" who wakes up in hospital, replete with some mysterious scratch marks, nightmares and claiming that they were attacked by a brutal hound. Nobody really believes him, and anyway his attention is quickly diverted by nurs...