Sebastian Snail is a very bored snail, and has always wanted to be famous. At Halloween, after throwing a big party for all his friends and neighbours, he decides to go ghost hunting with his best friend, Caruthers Caterpillar. At dead-of-night, they set off into the dark, in search of witches and ghosts, and things that go bump in the night And they're headed for Halloween House - a house that is said to he haunted.....