In this deductive genre, each player plays the role of a character with the dual purpose of unraveling a mystery and simultaneously achieving his or her own objectives. The investigation, the negotiations with the rest of the cast and the exchange of information are fundamental pieces to solve the crime, but do not forget that the murderer is one of you. You can't believe everything you are told, but you can't win without trusting someone... Japan, early 21st century. Civilization, as we know it, has succumbed as a result of the spread of a virus that turns its victims into the living dead. The arrival of a stranger in a white coat to a small community of survivors augurs the possibility of developing a vaccine to put an end to the plague, but within hours the stranger turns up dead. Incursions of zombie worshippers dot the country, rumors of a mysterious killer strangling his victims, plague survivors disappearing without explanation... and a strange melody that night after night seems to come from underground. Who, among you all, will delve into the depths of the mystery and perhaps find refuge in this new promised land called Sanctuary? Playing is very simple, just follow these steps: 1. Hand out a character for each player and introduce yourselves to the rest. 2. Try to uncover the mystery while you find out who your allies might be. 3. Your actions will lead you to one of the many possible endings.