煤气工人带着他的孩子去参加一年一度的工作聚会，没料到却被孩子发现了他一个惊人的秘密。It's the Christmas season. With her mom's help, Lynne, a girl of perhaps eight, dresses up; her younger brother Steven plays with a toy car. The children leave with their dad, who's affectionate with them. They walk down a railroad track where an unkempt woman waits with two children, about the same age as Lynne and Steven. The children go with them. They're all headed to a holiday party at a pub. Lynne notices that the girl acts all too familiar with her dad. What's going on?