Wactch The Following Online. series follows an FBI agent who finds himself in the middle of a network of serial killers, when a diabolical serial killer uses special technology to create it.In Entertainment Weekly, features TV writer Melissa Maerz wrote in a preview article, “Purefoy plays Joe Carroll, a former college professor who taught the works of Poe and killed young women in the gothic hero’s honor—until he got caught. Since then he’s been spending hours on a computer in the prison library, building a social network of copycat killers who hang on his every command. When the series begins, he’s just escaped from death row with help from those followers, and the FBI calls in former agent Ryan Hardy —who brought down Joe the first time—to consult on the case”.