An Iowa version of Miss Marple set in 1903 in Locked Rock, Iowa. Gracie Evans, a retired farmer, rents her farm out and moves into a retirement home. Gracie and Melinda Applegate spend their days rocking on the front porch. Boredom sets in. Gracie tears peek holes in the vines attached to the porch so they can snoop on the neighbors. Seemed like a harmless diversion until they see the killer of a woman across the street. Afraid to tell what they saw to the law, the women fear for their lives. The killer is stalking them and everyone in the Moser Mansion For Women Rest home wind up dead. Gracie takes matters in her own hands when she talks Melinda into going with her in the night to search for evidence in a shed on the killer's property. Can they sneak in and out of that shed without being seen or heard? Maybe if they can get past the killer's watch dog.