When a young woman who has been missing for months, turns up battered and bloodied, lying next to a headless corpse, the police are convinced that she is a killer - but why?
The only clue is the murder weapon, an ancient sword dating from the 6th century, the Dark Ages, according to historians, and this has the police and archaeologists baffled as to how it could be in our century, yet perfectly preserved.
Refusing to talk, Emily is sent to a psychiatric hospital for her own safety.
Dr Marian Griffiths is determined to get ahead in her career, and sees Emily as her way of doing that. Using hypnotherapy, she finally has a breakthrough and Emily begins to talk, but the story that she tells couldn't possibly be true - could it?
Would you give up your life, for love?