The Doctor and Leela investigate the strange events in Victorian London. But a mysterious masked figure lurks in the shadows.
Quest roles:
Christopher Benjamin(Jago), John Bennett(General Finch), Michael Spice(Voice of Morbius (voice)), Chris Gannon(Casey), Trevor Baxter(Professor Litefoot), Deep Roy(Mr. Sin), David McKail(Sergeant Kyle), Conrad Asquith(P.C. Quick)