When librarian and budding private investigator Kitt Hartley visits her ex-assistant Grace Edwards in Durham, she soon learns of an unsolved murder.

A year ago Jodie Perkins, a Mechanics student, disappeared after her student-radio broadcast was cut short with a deafening scream. The police suspect Jodie was murdered although her body was never found.

Keen to be on the front line of one of Kitt's investigations, Grace convinces Kit to use her recent private investigator training to solve the mystery. Can Kitt and Grace uncover the truth?