This house is not as usual. There is something going on here and this is something that must be investigated because people will be coming here for the Christmas Party and it should be a safe place for everyone. All the doors in the house that are supposed to be kept open are not only locked but also jammed at the moment. This may be well be the work of an intelligent but evil brain. You have to find clues and use them wisely to solve the puzzles that will help you do what you have been sent to do inside the house.