Isaac Asimov's Inferno
In a Universe protected by the Three Laws of Robotics, humans are safe. The Second Law states, a robot must obey the orders given it by human beings except where such orders would conflict with the First Law. When a key politician is murdered, suspicion falls on Caliban... the only robot without guilt or conscience, with no need to obey or to respect humanity... a robot without the Three Laws. But the stakes go deeper than one man's life. Caliban is challenging long-held ideas of a robot's place in society. Will he lead his New Law robots in a rebellion that threatens all humanity?