The winner of the fifty-ninth Mystery Writers of Japan Award for Best Novel, translated here by Alison Watts (Aya Goda, Durian Sukegawa). Seventeen people die from cyanide in their drinks at a party hosted by the Aosawa family. Blind daughter Hisako is the only surviving family member. Many years later, the author of a book about the crime and a detective unite to get to the truths of culprit and motive. A multiple-voice exploration of the psychology of modern Japan.