One-time teenage sweethearts, Samantha and Greg, decide to marry. But inexplicably, Greg postpones the wedding, disappearing for days at a time and refusing to offer any reason for his disconcerting behaviour. Gradually, a disturbing picture of Greg begins to emerge. Although he eventually agrees to the marriage, he is seen with a mysterious woman soon afterwards. Then a stranger turns up asking questions. Samantha realises something very alarming is happening. Not only does she fear for her marriage, she fears for her life too.