BBC comedy series from the team behind The Play That Goes Wrong. Starring Derek Jacobi and Diana Rigg. The Olivier Award-winning Mischief Theatre Company returns to the small screen with another festive spoof. The amateur cast and crew of the Cornley Polytechnic Drama Society find themselves out of their depth, with no idea how to handle the special effects necessary to bring Dickens’ perennial festive favourite to life. Derek Jacobi and Diana Rigg lead the cast in this BBC comedy.