Benjamín Chaparro is a retired detective still obsessed by the brutal, decades-old rape and murder of a young married woman in her own bedroom. While attempting to write a book about the case, he revisits the details of the investigation. As he reaches into the past, Chaparro also recalls the beginning of his long, unrequited love for Irene, then just an intern, now a respected judge. Interweaving past and present, this deeply layered mystery explores the murky boundaries between justice and revenge, and asks the question: how far would you go to right an unfathomable wrong?