The apparent suicide of a prominent architect unravels into a complex murder investigation with roots in a decades-old cold case. DI Danny Stowe and forensic psychologist Rose Lainey are tasked with investigating the death of James McCallum, found hanging in the grounds of his former school. Initial suspicions of suicide are quickly dismissed as the investigation uncovers a connection to a 20-year-old missing girl case and a teenage party. The narrative framework appears to be a police procedural, focusing on the investigative efforts of Stowe and Lainey as they navigate the secrets of the past to uncover the truth behind McCallum's death and the killer's motive.

The Midnight Killing is lauded by readers and authors alike as a taut, intense, and gripping crime thriller that maintains suspense throughout. Reviewers frequently highlight its ability to keep them on the edge of their seats and unable to put the book down, praising its dark, twisty, and atmospheric nature. The dynamic between DI Danny Stowe and Rose Lainey is noted as a strong element, and the plot's ability to constantly surprise the reader with unexpected twists is a recurring point of praise. The book is recommended for fans of established crime fiction authors, suggesting a strong appeal within the genre.