Season 1

Alleyn cancels his holiday with Troy to investigate a murder connected to a stolen chalice, but he's called when a second murder occurs at uncle's estate.

A member of Parliament who has taken controversial stands on Palestine and A-bomb development is murdered during a routine appendectomy.

An egotistical Shakespearean ham actor gathers his dysfunctional extended family in his mansion on his 75th birthday for the reading of his will.

During a display of dart throwing in a Cornish pub a man's hand is impaled by a dart, and he dies shortly afterward from cyanide although no one can explain how.

Inspector Alleyn enlists the help of his friend Lord Robert "Bunchy" Gospell to uncover a society blackmailer. After Lord Robert is killed, a murder hunt follows among the world of titled heiresses, gamblers and adulterers.