
Mystery writer and amateur detective Jessica Fletcher - a down-to-earth, middle-aged widow - ferrets out the criminals in idyllic Cabot Cove, Maine, which apparently is the murder capital of the United States for the show's 12-season run. Though while traveling, she uncovers a fair number of killers as well.

Jessica becomes involved in a double-murder investigation when she attends an opera opening with old friend Dennis Stanton (Keith Michell) in San Francisco.

Jessica spends the weekend on a remote island with a tycoon (Gene Barry) who thinks his life is in danger.

Jessica's friend, a top-flight homicide detective (Barry Newman), investigates the cover-up of a young woman's murder.

A woman is electrocuted in the bathtub, and the chaos that follows makes things difficult for Amos as he prepares to turn the reins over to a new sheriff.