When a decorated soldier faces exile due to blackmail, Lord Julian Caldicott must uncover the truth within a fractured family. Julian, seeking to alleviate winter's monotony and aid a former comrade, investigates a threat against a sharpshooter. At Dunsford Keep, he encounters a family embroiled in disputes with each other, their neighbors, and their own histories. The investigation intensifies as Julian's own family becomes entangled, and he must identify the blackmailer before an innocent man is permanently banished and Julian himself faces consequences.

The premise sets up a classic cozy mystery with a Regency-era twist, focusing on intricate family dynamics and a central investigation. The narrative is likely to appeal to readers who enjoy historical settings combined with suspense and a touch of romance. The focus on Lord Julian Caldicott suggests a character-driven plot where his deductive skills are tested against a backdrop of social intrigue. The resolution hinges on Julian's ability to untangle the lies and expose the guilty party, ensuring a satisfying conclusion for the reader.