The Worldwide Science Federation has sent Cheryl back to the university where she taught to investigate misconduct charges. Now, she must face the same people who denied her tenure the year before tenure was abolished. During her investigation, a string of unrelated murders baffles the police. Each assailant denies they were in control of their implanted cybernetic prosthesis when they killed. Cheryl becomes drawn into the investigation by Dr. Eliana Zelyonaya, her former research assistant. Accompanied by Holmes, her Pembroke Welsh Corgi, and with a little help from her cat, Professor Moriarty, Cheryl analyzes clues in a world where homes are smart homes, cars are self-driving, and taxis fly. But will she be able to find the real killer before they strike again?