"You know when a song gets stuck in your head? Round and round ... over and over. I've got that right now ... only it's not a piece of music ... it's not a tune ... it's a phrase: home is where the heart is ... home is where the heart is." A coastline erodes, a house falls into the sea. A mysterious brother and sister arrive looking for answers. Marnie clings to her camera, taking photographs of strangers and places. She has come to say goodbye to a life she never knew whilst her brother Linus is keen to make a fresh start. But when they find Simon and daughter Kelly, reeling in the wake of tragedy, all four lives are to become inextricably linked under the weight of the past.