It's Halloween. Susan goes in for the festivities in a big way but Ben isn't quite so keen. Susan decks the house out in pumpkins, spiders and skeletons. Worse still for Ben, as all the kids will be out, Susan is adamant that he participates in some spooky goings-on.
Susan dresses up as a witch, but Ben refuses to put on the costume she has hired for him. Answering the first knock on the door from trick-or-treaters Ben is his usual grumpy self. He gets an egg thrown at him as a reward.
The next knocker is Mr Green and his son Timmy. Susan has invited them over to see her witch's coven. Timmy is not impressed by Susan's special effects at all - 'have you seen Lord of the Rings?' he asks. Ben, on the other hand, does a far better job of scaring Timmy. A lecture on the finality of death and the non-existence of the afterlife soon reduces Timmy to tears.
Roger arrives dressed as a ghost, or rather dressed in a big white sheet. The trick-or-treaters knock again. Ben is prepared this time and offers them some chocolates. However the ungrateful swine don't like orange crèmes and proceed to pelt him with more eggs.
When the trick-or-treaters knock yet again the sweets have run out and Susan offers them a biro instead. The kids are not happy. The house is then besieged by malevolent children desperate for a sugar fix.
Abi arrives dressed as a wedge of cheese. She has run a gauntlet outside as she felt the kids were going to eat her. Worse still the garden furniture is soon set alight and the police are called.
Unfortunately, thinking they are the trick-or-treaters, Roger manages to shower the police officers in rotten eggs when they arrive.
At the end of an eventful night it seems there is something genuinely spooky happening in the house. Noises from upstairs and a very mobile skeleton put the Harpers on edge. Then an axeman starts to make his way down the stairs...
It's Mr Green. Furious that Ben made his little boy cry, he has been exacting his revenge.