In a world where shadows loom larger than life, Slim Callaghan, private detective, finds himself ensnared in a web more tangled than any he's encountered before. "They Never Say When" thrusts Callaghan into the murky depths of deception and greed, courtesy of a client whose allure is as dangerous as the secret she harbours. When Mrs. Paula Denys walks into his office, her request is anything but ordinary: she's paid a man to steal...