Dexter hopes to have a chance to makes things right with Harrison, which is proving to be tough to do when there's a full-fledged crime investigation that Dexter himself has caused. Harrison joins the high school wrestling team and quickly makes a name for himself at school. Meanwhile, a true crime podcaster from LA arrives in Iron Lake and befriends Dexter's police chief girlfriend.
Once an abused and abandoned child, Dexter is now a successful forensics pathologist... but lurking just beneath his charismatic personality is a terrible truth. Dexter has corralled his innate homicidal urges into a closely guarded second career: He hunts down and brutally murders those vicious criminals who have managed to avoid the clutches of the law. Basing his life on the teachings of his foster father, Dexter only kills people who truly deserve it: he ensures that those who got away with horrible crimes will never hug again.