Barbara finds her last hope to be a grandmother when her son, Ethan, falls for Kendall, a divorce with children. At first, kept at arm’s length, Barbara quickly infiltrates the family by using devious tactics to win over Kendall’s kids. Unannounced visits escalate to murder as 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 is.