 As Tom is quite happy constantly bickering with Susan like lovers only allow each-other, he secretively encourages his docile brother-in-law Chris to stand his ground for once against his ever bossy wife Mary, but in that couple it soon leads to the first-ever break-up lasting over three hours, just when the Kelly parents plan a  perfect  dinner for the first girl-friend that Lewis might even seem a wedding option for. Meanwhile Mary stays at their place, and overcomes Tom initial aversion by showing how much better she s at housework then either he or Susan even knew was possible, and waiting on him as she did with Chris. But will these role reversals keep satisfying everyone?