One day Moomin notices that his tail seems to be thinning. Worried that Snorkmaiden will no longer love him if his tail goes bald, he consults the family doctor and several tail specialists, and even gets an X-ray. Nothing helps! Finally Moominmamma cooks up a magic potion, and it works like a charm, but now Moomin's lustrous new tail is, well, solid gold! Moomin becomes the toast of society, and the target of numerous journalists and money-making schemes. Moomin and the Golden Tail takes a long hard look at the consequences of fame.