There's a fine line between saving lives - and taking them. Nursing is everything to Dawn. Having lost her beloved grandmother to cancer, it breaks her heart to see a terminally ill patient suffering in the same way. So when the old lady begs Dawn to end her life, Dawn knows it is the kindest thing to do. But what she doesn't realize is that someone in the hospital has been watching her. Someone who is intent on making her pay for what she's done. Wracked with guilt, Dawn struggles to meet her tormentor's demands. But she is already way out of her depth. And things are about to take a very sinister turn...