In the build-up to QEII's coronation, a polio survivor is working as a stage magician's unseen assistant.
I thought this was a murder mystery with a gay detective and so was getting more and more confused waiting for a body (which never appeared) and for more exploration of gay life at the time (which only had a few mentions near the end). If I'd known what I was actually getting into I might have been in a better frame of mind to appreciate it.