PLOT: In “The Christmas Plumber”, Thomas Brodie-Sangster  plays a London plumber, John Benson, who is hired by a rich, single socialite Maggie Andrews (Olivia Olson) to fix a minor shower issue. Days after fixing the shower, Maggie’s kitchen sink stops working, and later it’s her washing machine. Every other day seems to be something new and she is hosting her big Christmas Eve party soon! Finally, after a handful of encounters, some of which are awkward, funny, intimate, and personal guess what happens? Yes, John and Maggie fall in love with each other. But will Maggie get over the class difference between them?