For Nicole Robinson, Christmas means returning to the family home in Hebden Bridge with her sister Beth and their brother Liam, who has lived with permanent delays since a childhood accident. Though Beth and Nicole have grown up and moved away, every December the Robinson kids reunite for a month of family and festive traditions.

One tradition, however, has always stood out: the mysterious source of the sleigh bells they’ve heard every Christmas for as long as they can remember. The magic of it all keeps them searching year after year, convinced the answer is just one clever plan—or perhaps something more magical—away.

And while the Robinson household is brimming with holiday cheer, Nicole’s love life is anything but merry. Every year, like clockwork, she finds herself single by Christmas—dumped by one girlfriend after another who can't handle the intense month-long family tradition. This year is no different, and Beth has even made her an Advent calendar to track her sister’s inevitable seasonal breakups. But a familiar face from the Robinsons' past begs to ask if maybe, just maybe, Nicole’s luck is about to change.

Niamh, a childhood friend of Liam’s and the only one who stayed by his side after the accident, has returned to Hebden Bridge. A decade away has turned her into a stunning Irish woman with raven hair and sparkling green eyes, and as the scent of hot chocolate fills the air, she stirs something warm and unexpected in Nicole.

Can Niamh fit into the Robinson family’s quirky Christmas traditions, or will this holiday romance end like all the others? As sleigh bells ring and festive cheer fills the air, Nicole just might discover that the real meaning of Christmas isn’t in the mystery of the bells, but in the magic of love.