Four crime-solving friends face off against a killer in San Francisco in the Women's Murder Club novel that started James Patterson's thrilling series.

Each one holds a piece of the puzzle: Lindsay Boxer is a homicide inspector in the San Francisco Police Department; Claire Washburn is a medical examiner; Jill Bernhardt is an assistant D.A.; and Cindy Thomas just started working the crime desk of the San Francisco Chronicle.

The usual procedures aren't bringing authorities any closer to stopping the killings. So the women form a Women's Murder Club to collaborate outside the box and pursue the case by sidestepping their bosses and giving each other a hand. The four develop intense bonds as they pursue a killer whose crimes have stunned an entire city. Working together, they track down the most terrifying and unexpected killer they have ever encountered--before a shocking conclusion in which almost everything they knew turns out to be devastatingly wrong.