A Nipopo doll sheds a tear—another soul is sheds its mortal coil. One morning, a man's body is found floating in the Tokyo bay. He's estimated to be in his forties. But the incident doesn't stop here. It moves to Hokkaido's cities: Kushiro, Abashiri, Shiretoko, Monbetsu... A second and third murder link the northern island to Tokyo. The Okhotsk Disappearance is a graphic adventure game where you play as a police detective. Your job is to find the truth behind the serial murders with the help of your subordinates. To do so, you have a command interface with 14 actions, such as "Change Location" and "Ask someone".