Angela Landsbury plays a renowned mystery writer named Jessica Fletcher. A former English teacher, Jessica begins writing after the passing of her husband Frank. After her first novel is published, she becomes a full-time writer. However it seems that she murder and mystery are destined to be a part of her life. It soon becomes evident that not only is Jessica an author, but she’s also excellent at solving mysterious crimes. She often relies on her friend and assistant Dr. Seth Hazlitt (William Windom), and Sheriff Metzger (Ron Masak). With the talent that Jessica illustrates, others around her consider her much more than a novelist, but also an amateur criminologist.