The world has gone to shit with increasing temperature and guests who need shelter from the burning sun. The player must distinguish real people from Visitors pretending to be humans, providing shelter to the former and eliminating the latter. At night, the player chooses guests to let in and can check the window to observe the surroundings. The story explores themes of identity, alienation, and trust. It's supposed to show a good perspective on an apocalyptic scenario of paranoia.