Kathy Blentlinger fears she's being stalked by her own sister-in-law, Suzy, who's rumored to be setting fires all over town. When Kathy dies in a house fire after an argument with Suzy, her death is ruled a homicide and her brother and sister are convinced Suzy had something to do with it. No one is arrested and Suzy passes away, but Kathy’s brother and sister suspect accomplices still walk the streets.