An attorney from Yokohama is found murdered at Lake Toya in Hokkaido. Uematsu (Noi Yasuo), of the Hokkaido police goes to Yokohama in search of Konno Shizuka (Watanabe Azusa), a woman who may know something about the case. He tries to take her in to the station for questioning. Muta (Kobayashi Keiju) happens to be there as well. Muta learns that Konno has a debt with a moneylender in Hokkaido.