Billy gets withdrawal symptoms when fiancee Barbara considers it time they got acquainted with the Wedding March! The thought of a stroll up the aisle kicks Billy's imagination into overdrive.

When Oswald, Mr. Shadrack's nephew comes to work at the funeral parlour, he and Billy fall out.

Barbara, realising that Billy has received a lot of boring presents for his birthday, arranges that they spend the evening together. His luck changes, however, when he meets up with Sheila.

Billy takes up lodging with a Miss Duggins. It is soon apparent that her house rules do not comply with Billy's visions of life.

Billy is attracted to an advert in the local paper asking for men to be recruited for a career in publishing. Mr Shadrack and his parents pour cold water on the idea, but unperturbed, Billy goes to the interview anyway and gets the job. However, the publishing life is not what it seems, and is in fact selling encyclopaedias door-to-door. It's not exactly legal either...

Billy's new girlfriend Alison has an unusual hobby - she collects engagement rings. Unfortunately for her, Billy's ring is still firmly on Barbara's finger...

Billy's family are filled with admiration when he tells them that for the past six months he's been taking piano lessons, developing an amazing talent. Mr. Fisher is more sceptical and questions whether Billy can play at all. Billy has in fact been going to see a piano teacher all this time, but he's been playing drafts with the old man in a hope of being left a legacy when he dies. Billy is obviously horrified when a piano turns up at the house and his family urge him to play it...

Billy becomes obsessed by the television series Kung Fu, and in his imagination lives the life of duty and honour of its hero, Caine. After a kung fu smash on an expensive urn at the funeral parlour, Billy is suspended without pay, but fortunately this gives him the time to look after his grandma. With grandma due at the hospital, Billy's imagination soon runs away from him, dragging with it his grandma's wheelchair...

Billy is summoned to Jury Service. Appalled lest his son let him down, Dad stages a mock trial in the living room to give Billy some understanding of British justice.

Billy's father takes to his bed with a slight chill and his mother calls the doctor. Billy overhears part of their conversation and promptly misunderstands the doctor's remarks.

Billy discovers that being sacked for incompetence by Mr. Shadrack isn't such a bad thing after all.

Billy usually manages to keep his fantasies to himself but when a stately middle-aged lady called Evangeline Tupper calls on Mr. Shadrack he wrongly imagines a liaison taking place.

When Dad papers the parlour he expects everyone to muck in and help, including his idle son. Billy has other ideas, and has several more amusing ways of spending his evening...