Your cousins are rich people and they have a wonderful house in the city that you are going to visit. Knowing that you are coming to the city your cousins have invited you to stay with them. You readily accept the invitation and go to be with them for the vacation. Next morning you wake up late and discover that there is nobody in the house. They all must have left for their respective jobs and now you are all alone and trapped inside the house. You are very sure that there must be a spare key in the house. You will have to find it and use it to get out of the house.