Lily is back from Australia for the first time in seven years to spend Christmas at her mum’s house in a small, gossipy English village. To her surprise, she returns to find that her mother is dating the man next door, who also happens to be the father of her ex-boyfriend Tom. Tom, who broke Lily’s heart all those years ago. Tom, the real reason Lily fled to the other side of the world and stayed there. Tom, who is also home for Christmas and right there, next door.

In what is shaping up to be the worst Christmas ever, somehow Lily and Tom have to try to get along and play happy families, but living with the man who she is clearly not over is proving to be difficult, and tensions are high. Add in some drunken caroling, a reindeer bite, a potent Christmas pudding and some meddling parents and Lily’s trip home will turn her entire life upside down.