Invisible helix

Detective Galileo returns in a case where hidden history, an impossible crime, are linked by nearly invisible threads in surprising ways. The body of a young man is found floating in Tokyo Bay. But his death was no accident - Ryota Uetsuji was shot. He'd been reported missing the week before by his live-in girlfriend Sonoka Shimauchi, but when detectives from the Homicide Squad go to interview her, she is nowhere to be found.