Peggy Newman, a woman with a checkered past, makes the life-changing decision to become a private investigator following the death of her beloved mother, who she lived with in the small desert town of Yucca Valley, California.
During a bitter 1964 Massachusetts winter, young secretary Eileen becomes enchanted by Rebecca, the glamorous new counselor at the prison where she works. Their budding friendship takes a twisted turn when Rebecca reveals a dark secret — throwing Eileen onto a sinister path.