It's the Christmas season. Wealthy Chicago ad executive Drew Latham has long avoided the family traditions of Christmas, but has dreaded being alone on the actual day. So when his tropical Christmas vacation with girlfriend Missy Vangilder falls through with Missy breaking up with him in the process, Drew, in going through some self-therapy, decides what he really needs is to relive the memorable Christmases from his childhood, which includes spending time with his parents and younger brother. As that is not possible, he decides to rent a family, namely ones he's never met before, the Valcos - husband and wife Tom and Christine and their teenaged son Brian - who now live in Drew's childhood home in suburban Chicago. Tom initially wants nothing to do with Drew until an exorbitant sum of money is involved, all written in a contract which expires at the end of Christmas day. What Drew is initially unaware of, or what he chooses to remain ignorant about, is that the Valcos are going ...