The Dead Murderer

Allie Jones was wanted for six counts of murder after killing her husband, parents, and three children. She was found dead after committing suicide while on the run from the police. But now, five years later, a young couple and their two children are found killed. They were killed the same way Allie Jones' family was. The police are left without any leads, so they turn to the Special Investigation Division. Teenage daughter of Head Investigator Jonas Schweitz, Cady Schweitz, is convinced that she can solve the mystery, but her father and his co-workers dismiss all of her ideas. Can Cady solve the mystery before more fall victim to the murderer?