Fungus the Bogeyman is having a troublesome night. Not only is he suffering from a loss of "funk" or Bogey stench, but his wife Mildew suspects their son Mould is Drycurious, illicitly dabbling in Drycleaner human culture!

Fungus reveals to Mildew that by using forbidden face folding techniques, turning them into passably Dry individuals, the Bogeys will be able to navigate the Surface undetected.

Things are looking up for Mildew, who is settling in nicely after a morning at Wendy's gym she's farted herself slim and inadvertently become Wendy's poster girl. Mould is delighted that he and Lucy have a real connection, and Eve is using his distraction to secretly collect his funk� But Fungus is miserable working as a handyman and living near the suspicious Eve.

Fungus has really put his athlete's foot in it this time, and now the Bogeys must flee to Eve's house. But she's not happy about the imposition and exposes her secret identity to Mildew! At least the distraction gives Mould a chance to sneak off to Lucy's party.