Everyone has to live with their past, but no one should be haunted by it... Ellie Walters is determined to get back on her feet after the break-up of her marriage. Now living on Cape Cod with her increasingly angry and troubled teenage son, Tim, she tentatively believes they can build a new life together. And when Ellie finds herself falling for her new neighbour's son, Joe, she feels she can at last move on. Until, one day, elements connected to a tragic event in Ellie's past - an event she has never been able to come to terms with - start appearing. It seems that someone is determined to make her suffer, all over again. Whilst a misunderstanding drives a rift between her and Joe and her relationship with Tim threatens to deteriorate completely, a confused and frightened Ellie seems powerless to stop what seems increasingly like a terrifying campaign of persecution. And Ellie is faced with the horrifying possibility that she'll be trapped in this nightmare for ever...