Noah Alderman, a doctor and a widower, has remarried a wonderful woman, Maggie, and for the first time in a long time he and his son are happy. But their lives are turned upside down when Maggie's daughter Anna moves in with them. Anna is a gorgeous seventeen-year-old who balks at living under their rules though Maggie, ecstatic to have her daughter back, ignores the red flags that hint at the trouble that is brewing.