In Gotham City, the crime fighter Batman defuses a hostage situation caused by a criminal known as Two-Face, the alter ego of the former district attorney Harvey Dent, but Two-Face escapes and remains at large. Edward Nygma, a researcher at Wayne Enterprises who idolizes Bruce Wayne, has developed a device that can beam television into a person's brain. Bruce offers to let Nygma come up with schematics for the device and set up a meeting with his assistant. However, after Nygma demands an answer from him immediately, Bruce rejects the invention, believing it to be too close to mind manipulation. After killing his supervisor and staging it as a suicide, Nygma resigns and begins sending Bruce riddles, seeking retaliation against him.
