When Maude Slocum - beautiful, frightened and angry - comes to Lew Archer's office with a poison pen letter intended for her husband, he reluctantly agrees to help her. As he follows the Slocums around, Archer finds that Mrs Slocum might have the least of the family's troubles: her teenage daughter is desolate, her husband is in the closet and her mother-in-law has just come to an unpleasant end in the swimming pool. But why is their handsome ex-chauffeur still hanging around? And what does the sinister Pacific Refinery Company have to do with the all the bloodshed?