Caroline Christmas, a control freak desires nothing more than a perfect Christmas with her sisters at her lavish country manor to atone for the fact that their father abandoned them many years ago. When on Christmas Eve their long-lost father arrives at their doorstep with his new girlfriend, chaos ensues. Through a series of mishaps and misunderstandings, Caroline uncovers a long-buried family secret. Can the family still celebrate Christmas together after all?
During the scene where the big secret is revealed, John walks in with one or two newly shot birds in one hand. There's also a roast goose at one point.
Not in the course of the movie's events, but someone did so in the past, which is crucial to the plot, since the affair and its discovery led to the current situation.