To appear on the eve of Halloween locked in the house - not a good prospect. Friends having fun, go to the neighbors and scare them with their creepy costumes, and you sit in the house, decorated in the theme of the holiday style of All Saints, and you can not get out because of the lack of keys. Do not waste time on meaningless panic and throw the rooms, and use logical reasoning to find the lost, and solving puzzles using clues found correctly.