Every December, Holly writes to a stranger who is spending Christmas alone. And every year she receives a letter from another lonely person.
Being a part of the Dear Stranger club is a tradition she has come to treasure. Because ever since the accident three years ago, Holly has spent Christmas alone.
Usually, the letters go unanswered. But when Holly reads this year's Christmas letter, from an older woman called Emma, she feels compelled to find her. Emma writes of a sadness that Holly can relate to. And she mentions a place Holly knows all too well.
Holly offers to help Emma reconnect with her estranged grandson. But when Holly tracks down handsome, dark-eyed Jack, she realises she's met him once before, and the connection was electric. Suddenly helping a stranger is about to get a lot more complicated...