Set in the icy wilderness of Hokkaido during the early days of the Meiji era, where the brutal warden of Kabato Prison terrorizes convicts sentenced to forced labor to build the roads needed to open up the territory.

When an American is murdered in a Japanese inn, Tokyo police detective Munesue follows the trail of the killer to New York. There he is joined by a New York City detective named Shuftan and together they sort out the crime.

A woman and her bridegroom are found murdered in their bed the day after their wedding. It had snowed overnight and the killer left no tracks. It is up to an amateur detective to figure out what happened. Carefully and systematically, he pieces together the clues in this locked room mystery.

Hideyuki Mitamura, a student at a private school near Osaka, is kidnapped on his way home from school.