Szkocja. Detektyw Karen Pirie pracuje w uniwersyteckim mieście St. Andrews. Policjantka wznawia śledztwo sprzed lat. Sprawa dotyczy zabójstwa barmanki Rosie Duff, do którego doszło nocą w 1995 roku.
With suspects under attack, Karen's cold case review becomes a live investigation. Is someone out for revenge for Rosie's death, or trying to ensure that the truth remains hidden?
Karen is forced to confront a version of the truth she never thought possible - with everything at stake, will she finally find Rosie's killer and achieve justice after 25 years?