Cabot Cove has more than one distinguished resident as we continually find out on Murder She Wrote. Foster Brooks is a well known painter who has been working on yet another masterpiece all summer. His celebrity has a certain groupie appeal to the consternation of his wife Diane Baker. After a dinner party where Jessica Fletcher is one of the attendees, Brooks is discovered stabbed to death by Dr. Hazlitt the next day.
Suspicion falls on young widow Tess Harper who is a proud individual raising her son Chris Hebert. She's got one big secret to hide which when discovered by Angela Lansbury and Sheriff Tupper makes her the prime suspect. But you know it won't be in the end.
Keep in mind that groupie appeal, even Jessica Fletcher got this wrong, close but still wrong.