Conversation with a commissioner -- Round trip on an expressway -- Incident at a shoe counter -- Introduction to a family -- Analysis of a murder -- Whispers in a bedroom -- Excursion into spacetown -- Debate over a robot -- Elucidation by a spacer -- Afternoon of a plain-clothes man -- Escape along the strips -- Words from an expert -- Shift to the machine -- Power of a name -- Arrest of a conspirator -- Questions concerning a motive -- Conclusion of a project -- End of an investigation
Summary
Murder of a Spaceman provokes a critical interplanetary situation and the criminal is found through the unwanted assistance of a robot.