A surreal adaptation of Sir Thomas Malory's "Le Morte d'Arthur", chronicling Arthur Pendragon's conception, his rise to the throne, the search by his Knights of the Round Table for the Holy Grail, and ultimately his death.
The dreary existence of middle-aged spinster Maura Prince takes an unexpected turn with the arrival of young handyman Billy Jarvis, but there is more to Billy than meets the eye. Based on the novel *Nest in a Fallen Tree* by Joy Cowley.
Dr Trevelyan calls on Holmes on behalf of his friend Blessington, after a Russian father and son vanish during a consultation. Blessington knows of no one who wishes him ill, but he is found hanged the next day. Holmes investigates, with advice from Watson.