The Invisible Executioner

In the aftermath of a toxic exposure lawsuit against the powerful railway corporation TransContinental, widow Elara Voss discovers that a series of sudden, seemingly accidental deaths among key witnesses are not misfortune, but perfectly engineered digital assassinations. A faceless hacker, known only as Cipher, has turned the city's power grid and water supply into lethal weapons, making murder untraceable in the physical world. As Elara digs deeper, she becomes the next target in a high-stakes game where the tap of a keyboard is deadlier than any gun, and the most dangerous predator is the one you will never see.