A young American au pair, Charlotte Clancy, vanishes in Mexico City. The case is left cold, but its legacy will be devastating. A decade later, LA is shaken by a spate of violent murders. Psychologist Nikki Roberts is the common link between the victims, her patients at the heart of this treacherous web. When someone makes an attempt on NikkiÇÖs life, itÇÖs clear she is a marked woman and the only man who may be able to help her is Derek Williams, the PI thwarted in the notorious Charlotte Clancy case all those years ago.