Liz Murphy is dismayed to be asked to mentor a volatile young teacher, then distraught to see her collapse and die in front of their students. When Liz, her niece Maria, and her new love interest Ned York are all suspects in the death, Liz, Ned, and Liz's best friend Caroline resolve to discover the truth. Along the way, they follow their suspects, with a mix of success and absurd failures. Between researching and tracking their suspects, Liz continues to teach math at the local high school and help her sister run the best quilting shop in the region. When Liz is threatened and then attacked while riding on a local bike path, sexy detective Jackson looks after her, and starts looking pretty good to her. The three novice sleuths try to stay out of Jackson's way as they bumble along in their pursuit of the killer. Can they figure it out before the killer hurts anyone else? Free Motion Murder has quilting and quilters, but no math!