In the middle of the Arctic, a group of scientists research a strange object that supposedly came from space, until a disaster falls upon the base: During a severe storm, all communications are cut off, and one by one, members of the research group begin to disappear. After checking the security cameras, everyone has a shocking revelation: an otherworldly creature is killing the scientists and taking their place. Now its a race against time to identify who the impostor is, before it's too late...
In "Who's there" the players may take one of the three roles: A scientist, the traitor or the creature. The scientist's goal is to complete the research and discover who the creature is, or try their luck and incinerate any suspicious members in hopes to find the creature under their skin, while the creature try to kill everyone in the base. Meanwhile, the traitor will try to sabotage both, in search of his own goal.
—description from publisher