The story is set in Miami, a bustling city with danger lurking beneath its surface. It may look like a sunny beachside resort, but crime runs rampant beneath the calm exterior. The protagonist, Dexter Morgan, is an outstanding blood-spatter analyst for the Miami Police Department, admired and trusted by his colleagues. But he has a hidden dual nature: the trauma of his childhood left him with a buried bloodlust. When his adoptive father, Harry, discovered it, he taught Dexter to channel that desire toward criminals who had escaped justice and laid down “Harry’s Code” for him. From then on, Dexter became a secret judge in the shadows.