In 1951, a botany professor was accused of murdering three women, but he managed to avoid suspicion thanks to the help of a graduate student. Yet many years later, in the Moscow region, the bodies of strangled women were found, and the police are convinced it’s the work of a serial maniac. The details of the murders match the long-ago case of the professor, and the professor’s heirs are suspected of new crimes. The police must solve this mystery in the novel “The Root of Evil Among the Herbs” by Tatyana Stepanova.