The Honjin Murders by Seishi Yokomizo

A pair of newlyweds are brutally murdered on their wedding night. Their bedroom was locked from the inside. A samurai sword thrust into the snow is the only clue.

One freezing night in the winter of 1937, the Ichiyanagi household is woken by a terrible scream, followed by the sound of eerie music.

Death has come to the village of Okamura, leaving no trace but a bloody samurai sword thrust into the pristine snow.

Soon, amateur detective Kosuke Kindaichi is on the scene to investigate what will become a legendary murder case, but can this scruffy sleuth solve a seemingly impossible crime?