Thirty years after destroying her detective father's career, Rachel, who has never given up hope of vindicating her father, finally finds The Sunset Strangler, a killer who, in the summer of 1979, preyed on young women in northern California.

The story of Eleanor and Cam as their marriage is shattered by tragedy and infidelity and how, during the decades that follow, they make surprising discoveries and decisions that bring them together, and tear them apart.