Murder of a human is the cardinal sin of the Asimovian faith to which all androids subscribe. Yet when a Russian gangster was murdered, his android was alone with him in a locked house. Webster, the android, reports the murder and denies he is responsible. As Dave Forsythe and Charl Asher, the detectives assigned to the case, delve into the facts, they learn much more is at stake than a simple murder. For humans as well as androids.