A quiet afternoon in San Francisco turns nightmarish for Detective Lindsey Boxer and Assistant District Attorney Jill Bernhardt when a townhouse explodes in flames inches away from them. When a sinister note signed August Spies is found at the scene of the disaster, and the body of an infant who was asleep in the house at the time of the explosion cannot be found, events take a decidedly sinister turn. Soon a wave of escalating violence engulfs the city, all with links to political terrorism and involving August Spies. The tension reaches boiling point when the horrifying realization dawns that an upcoming economic summit of the world's most powerful nations will be the next target. It's up to the Women's Murder Club to get to the bottom of the violence before it's too late ...