Veterinary student Jonny Watts has her life planned out, until she meets mysterious female detective Sheridan Hume and is drawn into an investigation that leaves Jonny questioning her beliefs about justice, commitment, and gender roles.

Jonny Watts has her future planned out: she'll be a veterinarian who writes mystery stories in her spare time. Her graduate studies are going well -- until her internet research leads her into an obsession with Sheridan Hume, a brilliant but eccentric female private investigator. To Jonny's astonishment, Sheridan takes her on as a kind of Watson to her Holmes. Together they investigate the theft of an unbeatable silver race car and the murder of the genius who designed its engine. But a deeper mystery unfolds for them: can each help the other to fully realize their potential, to become the extraordinary women they are?