Cathy Coulter is excited about her promising future with her new husband, Riley, and her son, Billy. As they settle into their new house, Cathy grows uneasy due to Riley’s frequent business trips and her gut feeling that something is wrong. When Riley departs for his next assignment, Cathy decides to follow him, leading her to another family’s residence. Bursting in to confront him, she discovers a dead body and receives a chilling call from Riley, who demands she confess to the murder or face the threat of her son’s death. With the police in pursuit, Cathy goes on the run, determined to uncover the truth before it’s too late to save her son.