When you leave for a trip, who knows you're gone from your house? Family and friends, sure. Neighbors, perhaps.So does the chauffeur who drove you to the airport. Alan Burris takes advantage of working for a car service to know when clients will be away from their houses for several nights. Some houses are easier, since they don't have a security system -- and these houses are on his list for a night visit to steal valuables.The Resnick house has been on Alan's list for a while, and now it will be empty for a few nights, since Mr. and Mrs. Resnick are spending a long weekend in Chicago.But is the house really empty? Alan's about to find out what it's like to not be alone in the house, his car, his apartment, and his head. And with another person hanging around, to what length will Alan go to get rid of them?