Harriet finds art imitating life when she discovers certain songs can transport her back in time – literally. While she relives the past through romantic memories of her former boyfriend, her time travelling collides with a burgeoning new love interest in the present. As she takes her journey through the hypnotic connection between music and memory, she wonders – even if she could change the past, should she?

It has been five years since the disappearance of Katie and Hunter, and a suburban family witness strange events in their neighborhood when a woman and a mysterious child move in.