A series of brutal murders targeting homosexual men in Birmingham, 1968, forces two unlikely detectives to confront a dangerous serial killer. Detective Sergeant Collins and his diminutive mentor, Detective Constable Clark, suspect a connection between the recent deaths, a suspicion that places them in direct opposition to the city's volatile gangland politics. Aided by Collins' landlady and lover, Agnes Winter, they must navigate a treacherous landscape of violence and personal upheaval to unmask the killer.

The third installment in Jim McGrath's Collins & Clark series, 'A Death in Spring 1968' is described as a 'right bostin adventure.' The narrative centers on the investigation of a serial killer targeting homosexual men in Birmingham, a grim backdrop against which the detectives, Collins and Clark, must also navigate personal challenges. The story promises a blend of gritty police procedural elements with the complexities of gangland politics and the personal lives of its protagonists. The inclusion of Agnes Winter, Collins' landlady and lover, suggests a layered approach to the characters and their relationships within the unfolding mystery.