The setting is an all-girls school. A teacher is found lying in a wooded area next to the school choked to death with a scarf. Murray, one of the first on the scene, is shocked to find that the scarf is hers! Naturally, the cops are called in. The only clue is the shoe print of the killer, found right behind the corpse. Before long inspectors Jackson and Kyd find they have a boatload of suspects!