"Killing a stranger is not a problem. Killing an innocent is not a problem. But killing his best friend is something else."
After working on an extraordinary science project to gain superpowers, Constantine and Ari’s friendship shatters. While Ari rises as a hero, Constantine finds himself thrust into prison as a convicted serial killer. Four years later, the shadows of their past catch up to them when Constantine discovers he received superhuman abilities from the gene experiment—powers he can manipulate to drive his former friend to suicide. He escapes the prison walls, ready to take his revenge. But Ari also possesses a supernatural gift that’s equally powerful and deadly. And to defend his life, Ari is willing to become a villain himself . . .