Black Diamond Chief of Police Bruno Courrèges investigates a series of murders that seem to be connected to a valuable black diamond. As he delves into the mystery.The Templars' Last Secret Bruno stumbles upon a murder at a château with ties to the Knights Templar. His investigation takes him into the complex history of the Templars.Death in the Dordogne When a British tourist goes missing in the picturesque Dordogne region, Bruno is drawn into a case that involves international intrigue and hidden motives.The Dying Season Bruno faces a challenging case when a local truffle farmer is found dead. As he looks into the suspicious death, he discovers a world of rivalries and hidden agendas.The Crowded Grave Bruno investigates the murder of a controversial local character in the midst of a protest against a new supermarket.Dark Vineyard In this installment, Bruno looks into the murder of an elderly winemaker. As he digs deeper, he uncovers long-buried family secrets.Fatal Pursuit Bruno finds himself entangled in a dangerous case involving art theft, horse racing, and international crime.The Resistance Man Bruno investigates the murder of a former British spymaster who had retired to the French countryside.Death Undercover Bruno is drawn into a case involving a missing undercover agent and a complex network of espionage. As he navigates the shadowy world of intelligence.The Devil's Cave Bruno is faced with a gruesome murder that leads him to an ancient cave system with a dark history.