Barbara Williams who played Corey Haims mom in the the 80s monster movie Watchers, stars as the unhinged mother in this one. She doesn't take it well when she finds out her son is moving his family out of state for his wife's (Kristen Dalton) new promotion. His father supports their decision, which his wife finds that as betrayal and quickly dispatches him. She works her way into her son's home and quickly begins to do things against her daughter in law which escalates to murder.
Good TV thriller
Review of Murder In-Law
