Henry Jekyll is a troubled man. His wife died of pneumonia. He wants his sister-in-law, but her father forbids any contact. And his experiments into the dual nature of man have yielded a personality-splitting drug that he has tested on himself, changing him into an uninhibited brute who seeks violent and undignified pleasures. Jekyll quickly becomes addicted to the sordid freedom induced by the drug. He can commit the most enjoyably revolting deeds, then return to his laboratory and use an antidote to change back to his original form, so that his lofty persona remains untarnished.

A large family meet at the family estate for the reading of their father’s will. Each expects to be the recipient of a tidy sum, but apart from the local constable and a few other small awards to the help, the entire estate goes to the favorite daughter.

The Blue Meanies take over Pepperland, draining it of all its color and music, firing anti-music missiles, bonking people with green apples, and turning the inhabitants to stone by way of the pointed finger of a giant blue glove. As the only survivor, the Lord Admiral escapes in the yellow submarine and goes to Liverpool to enlist the help of the Beatles.