Kate Willis, a psychiatrist and researcher for unexplained extraordinary human experiences, is called to investigate the case of a six-year-old Massachusetts girl who claims to remember details of a past life.

As usual, Kate expects to find a simple explanation. Instead, she is shocked to discover that the child seems to know eerie details about Kate's childhood friend, Becca, who vanished one summer fifteen years ago.

Forced to confront her own memories of that fatal summer evening, Kate must piece together two mysteries that threaten to overcome her...