Dr. Finlay's Casebook: The Uninvited Guest

"The Uninvited Guest" is the 26th episode of season three of the British medical drama, Dr. Finlay's Casebook, and the twenty-first episode of the series overall. It was directed by George Spenton-Foster with a teleplay written by Alistair Bell. It first aired on BBC One in the United Kingdom on May 15th, 1966.