San Francisco homicide detective Kate Martinelli faces a profound moral crisis when a string of vigilante murders targeting abusers forces her to weigh her professional duty against her personal convictions. As she navigates the complex social and political landscape of the city's lesbian and gay community, Kate must determine if these lethal acts of retribution are linked to a local group of feminist activists known as the Ladies of Perpetual Disgruntlement. The narrative, presented through Kate's observant and sincere perspective, tracks her investigation into the vigilante killings while she simultaneously grapples with the actions of those close to her, including her lover's ex-partner. The story examines the tension between justice and the law, questioning the limits of moral righteousness when confronted with systemic violence.

This novel is regarded as a thoughtful entry in the police procedural genre that prioritizes character depth over simple action. Readers and critics often highlight the author's ability to balance a standard murder investigation with complex social commentary regarding gender and justice. The narrative is noted for its grounded portrayal of a protagonist who exists within multiple intersecting communities, providing a nuanced look at her personal and professional pressures. The work is generally viewed as a successful exploration of the moral gray areas inherent in vigilante violence and the limits of activism.