I suppose the Beiderbecke series (there were three) have become a kind of cult classic, for a very small cult. They were never likely to find a bigger audience: the unique, gently skewed quality of Alan Plater's writing isn't the sort of thing with mass market appeal, but as with jazz itself, the Beiderbeckes have become practically a language for a small core of followers.
It's set in Leeds, in the early 1980s, and the main characters are a couple of secondary-school teachers. Beyond this, it gets hard to summarise. Not to give too much away, it involves a Cubs football match, a multi-storey car-park, a policeman with a University degree, a dog called Jason - and the music of Bix Beiderbecke, the first great white jazz musician: they said his playing sounded like bullets, shot from a bell.
I'll stop trying to explain it. The series is unique. You'll run into Beiderbecke fans in unlikely places for the rest of your life. They're good people. Try it.