63 BC. Gordian the Detective's cherished dream comes true - he abandons corrupt Rome and leaves the city with his family for the estate. At the same time, Gordian's long-time patron Cicero also achieved his goal - he became consul. Cicero asks Gordian to monitor the actions of Senator Catiline, suspected of an anti-state conspiracy. Unwittingly, Gordian finds himself drawn into a web of deceit and intrigue, unaware of the dangers threatening him and his loved ones, and even begins to doubt whose side he is on. The unexpected discovery of a headless corpse on Gordian's estate complicates the situation. The detective is faced with the most ominous mystery of his work. Epic in scope, topical in its description of political intrigue, brilliant in plot development, “The Mystery of Catiline” captivatingly depicts different aspects of ancient life - from the deceptive calm of the village to the chaos of elections in Rome.