Mutant slugs leave a trail of slime-covered bodies during a gut-wrenching reign of terror in a small town. Only one man realises the cause of the deaths, but by the time he can convince anyone of his bizarre theory, it may be too late. Horror adapted from a story by Shaun Hutson, with Michael Garfield, Kim Terry and Philip Machale.

People are dying mysteriously and gruesomely, and nobody has a clue what the cause is. Only health worker Mike Brady has a possible solution, but his theory of killer slugs is laughed at by the authorities. Only when the body count begins to rise and a slug expert from England begins snooping around does it begin to look like Mike had the right idea after all.