He thought he knew everything about her... but someone knew more.

Peggy Nettleton has been a loyal secretary to P.I. John Marshall Tanner for over eight years, and he thought he knew her well. But a mysterious phone caller, who threatens Peggy with mutilation if she doesn't tell him her most intimate secrets, seems to know her better.

Tanner sets out to silence the caller once and for all in a violent, treacherous case that hits a little too close to home, uncovering secrets and hidden desires along the way.