M047 - Omega

It starts quite funny, with the Doctor heading to a Time Lord museum/historical re-enactment space station with a pair of dottering old ladies. The exhibit employs actors to portray the dead characters of ancient Gallifrey, and one of them, Omega, is not quite as dead as he should be.

Just when the trapped on a spaceship with an actor possessed by the ghost of the character he was playing story is about to get old, near the end of part three, a big twist is thrown in, which causes some troubles for the story's clarity, but does a great job of rebooting interest and taking the whole play home.