A retired botany professor finds his quiet Christmas holiday shattered by the violent death of a local baronet. Andrew Basnett, an observant academic with a penchant for solving puzzles, becomes entangled in the investigation following the detonation of a bomb that kills Sir Lucas Dearden. He must navigate a web of social tensions and hidden motives among the victim's associates to identify the perpetrator. The narrative unfolds through a traditional mystery framework, emphasizing logical deduction and the careful examination of human behavior within a confined setting.

Elizabeth Ferrars is widely regarded as a master of the classic British mystery, and this work exemplifies her signature style of understated suspense. Readers often note the precision of her plotting and the dry, intellectual wit of her protagonist, Andrew Basnett. The narrative avoids sensationalism, choosing instead to focus on the intricate social dynamics that often mask darker intentions. The book is frequently cited for its ability to maintain tension through character interaction rather than relying on physical threats. It remains a staple for those who appreciate the methodical, puzzle-oriented approach to the detective genre.