What if you invited danger into your home? Amy is a loving wife and mother, to her husband Nick, and her two children, Michael and Bella. It's that dedication to her family that causes her to seek help for her teenage son when it becomes apparent that he is going to fail his end of school exams. Enlisting the help of a professional tutor, Amy is certain that she is doing the best thing for her child. But when she discovers that there is more to this tutor than meets the eye, it is already too late. With the rest of her family enamoured by the tutor, Amy is the only one who can see that there is something not quite right about her. But as the tutor becomes more involved in Amy's family, it's not just the present that is threatened. Secrets from the past are exposed too, and by the time everything is out in the open, Amy isn't just worried about her son and his exams anymore. She is worried for the survival of her entire family. This will be one lesson they will never forget.