Barbara wants nothing more than to be a grandmother. When her son, Ethan, meets Kendall, a divorced mother of two, Barbara quickly becomes an ever-present force in their lives. Unannounced visits escalate to murder, and Barbara will do anything to protect her relationship with her grandchildren. With her life in danger, Kendall must outsmart her mother-in-law to save her children and expose Barbara for who she really is… before it's too late.