Gunned down in the snowy wilderness and desperate for shelter, Billy Cavanagh is taken in by kooky old lady Agnes, unaware that her isolated log cabin is surrounded by bloodthirsty skinless creatures hellbent on getting inside.

Set on the canals amid the glorious British countryside, two sisters and their boyfriends head off for a relaxing weekend away on a barge, unaware of the flesh-eating fish mutants lurking in the water, ready and waiting to feed.