Set during the thrilling social change of the mid-1950s, this series follows the lives of four remarkable women gifted with extraordinary intelligence, breath-taking capacity for pattern recognition, and a genius for decryption. Years after secretly serving during WWII as code-breakers tasked with penetrating the Axis Powers’ secret communications, they turn their skills to solving murders overlooked by police. In the process they are plunged into fascinating corners of the city, forge powerful relationships, and rediscover their own powers and potential