How can you know someone you've never met?
Joyce Conway remembers things she shouldn't. She knows about tiny cobbled streets in Paris, which she has never visited. And every night she dreams about an unknown little girl with blonde hair.
When she leaves hospital after a terrible accident, with her life and her marriage in pieces, Joyce moves back in with her elderly father. All the while, a strong sense of déjà vu is overwhelming her, and she can't figure out why.
Justin Hitchcock is divorced, lonely, and restless. He arrives in Dublin to give a lecture on art and meets attractive doctor Sarah, who persuades him to donate blood. It's the first thing to come straight from his heart in a long time.
When Justin receives a basket of muffins with a note simply saying thank you, he is sure someone is playing a trick on him. But then a series of gifts begin to arrive. Intrigued and disturbed, Justin is determined to find out who is sending them. What he discovers will change his life forever.