Paradoxical Enigma

Antonia finally had her life the way that she wanted it. After spending much of her adult life in poverty, she was finally a published author with newfound wealth; she had a beautiful home, beautiful children, a loving husband, her dream job of writing, and most importantly, a life of predictability that had it's fair share of spontaneity. Life was great! Then one day, a bizarre stranger is spotted on school grounds and with each passing day, Antonia's perfect little life begins to shake as the body count begins to rise. Her husband's phone falls into the wrong hands, which seemingly made her husband the suspect. None of the clues were making sense and solving the murders was like solving a contradicting puzzle. Clues seemed to point to Antonia's past. At one crime scene, Antonia's infamous book was found ripped to shreds. In their hometown, one of the police officers seemed to hate Antonia more than he desired to find the killers. Antonia and her husband, Ryker, tried to maintain normalcy for the sake of their children, but when their child was kidnapped, it was time to take matters into their own hands. Was the killer among them? Or did Antonia take something for granted that has now come back to haunt her like a vengeful ghost?