Donna May is a grief counselor who suddenly finds herself grieving and alone after the hit-and-run death of her husband, Robert. Soon after Robert`s death, Donna`s estranged adopted son, Kevin, appears at her house, claiming he has cleaned up his act and wants to regain her trust. Donna reluctantly takes Kevin in, although they haven`t seen each other since a violent fight that she and Robert had with him five years earlier when he was caught stealing money from them. It doesn`t take long for the aggressive side of Kevin`s personality to emerge. He claims that Robert had been cheating on Donna, and prevents her from leaving the house or having visitors. Donna`s credit cards and checks go missing and Kevin won`t allow her to answer the phone. When Donna`s lawyer is found dead after Kevin accused him of being a fraud, she becomes convinced that Kevin killed him and attempts to escape the house, in what may prove to be a struggle for her life.