A student teacher’s midnight swim in the Thames leads to the discovery of a corpse, thrusting her into a dangerous investigation involving three mysterious men in a boat. Detective Sergeant Cribb and Constable Thackeray are tasked with solving the murder, navigating the social complexities of 1889 London while facing skepticism from the public. The narrative follows the investigators as they trace clues from the riverbanks to the academic environment of Oxford. The story utilizes a third-person perspective to track the methodical police work of the duo against the backdrop of a Victorian rowing craze.

Readers frequently highlight the meticulous historical research that grounds the narrative in the specific cultural context of Victorian England. Discussion often centers on the effective pairing of the methodical Cribb and the observant Thackeray, whose dynamic provides a stable anchor for the investigation. Critics often note the author's ability to weave literary references into the plot without disrupting the flow of the mystery. The pacing is described as deliberate and steady, favoring logical progression over high-octane action sequences. Many readers appreciate the atmospheric depiction of the Thames and the authentic period dialogue that defines the characters.