The truth that could save two sisters lies buried deep.

A desperate client storms into P. I. Barbara O'Grady's office, and begs for help finding her missing sister. Against her better judgment, Barbara agrees—the client reminds her of her own sister at her most needy.

Every lead takes Barbara deeper into the shadows of the past—and one step closer to the truth.

But old secrets die hard.

And so will Barbara, unless she can beat a killer to his mark.