
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.
After Jessica's story for children becomes a television puppet show; she must find the fiend who used one of the puppets as a murder weapon.
A vacation in the Grand Tetons turns into work when the man threatening Jessica's host with blackmail is murdered.
While Jessica is in Atlanta to address mystery writers, a lethal virus is stolen from the Biological Research Institute.
After a San Francisco radio station changes its music format from classical to rock, the promoter who engineered the switch dies and Jessica searches for the killer.