The wedding day is finally here. They are getting married at a castle in the countryside – all Leslie has to do is get there on time, in one piece and not ruin anything.
Jemma is away on a business trip, and Leslie is off to a Doctor Who convention. But Jemma calls and asks Leslie to wait in for a package - well, he did say he had no plans.
Leslie is not looking forward to his mum’s birthday lunch. Her new boyfriend Steve is only a year older than Leslie, and is particularly fond of public displays of affection.
Leslie finds a piano while on a house clearance. When it turns out to be self-playing, he takes a job as a pianist in a restaurant and quickly finds himself in over his head.