Chicago, 1928. Al Capone runs the city but cracks in his rule are starting to show ... In the heavy summer heat, a series of shocking events takes place. A group poisoned in a swanky hotel. A rich white man found dead in a down-and-out neighbourhood he should never have been in. A socialite, known across the city, vanished without trace. Could these events be connected? Is someone trying to bring down Al Capone? Ida and Michael at Pinkerton Detective Agency; Jacob, a police photographer with a personal vendetta; and Dante, working on behalf of Capone himself, are all trying to find answers in the city of jazz, dancing and corruption.