Sound Novel Evolution 2: Kamaitachi no Yoru Tokubetsu-hen

The game follows the characters Toru (Max in the English localization) and his girlfriend Mari (Grace in English), who stay at a ski lodge when a snowstorm takes place. That evening, a paper note is found in another guest's room, stating "Tonight, at midnight, someone will die". When one of the lodge guests is killed shortly thereafter, the characters are drawn into a murder mystery, while being cut off from contact with the outside world.