Riven by Lust explores the tale of a man accused of causing the fundamental schism in early Indian Buddhism, but not before he has sex with his mother and kills his father. In tracing this Indian Buddhist Oedipal tale, Jonathan Silk follows it through texts in all of the major canonical languages of Buddhism, Sanskrit, Pali, Tibetan, Chinese, and Japanese, along the way noting parallels and contrasts with classical and medieval European stories such as the legend of the Oedipal Judas. Simultaneously, he investigates the psychological and anthropological understandings of the tale of mother-son incest in light of contemporary psychological and anthropological understandings of incest, with special attention to the question of why we consider it among the worst of crimes.