In the second season of "Vampire Prosecutor," Min Tae Yeon is back as the prosecutor who heads up a new division that investigates unsolved murder cases. No one, except for Detective Hwang Soon Bum, knows that Tae Yeon was bitten seven years ago and acquired vampire powers. Together, they solve murder cases, and each time Tae Yeon uses his "powers" to find leads on cases that seem unsolvable. But the one thing he can't solve is: who was the vampire/serial killer that turned him seven years ago? And what happens when Jung In becomes suspicious of Tae Yeon's "questionable" tactics in solving cases.

Prosecutor Min Tae Yeon is bitten by somebody and becomes a Vampire. Tae Yeon rejects the life of a vampire and he survives by drinking the blood of dead people and still lives as a righteous prosecutor. Tae Yeon also uses his new founded abilities as a Vampire to prosecute powerful persons normally thought above the law. A mysterious case then occurs and the evidence points to a Vampire as the perpetrator. Tae Yeon now knows that he is not the only Vampire. He also ponders why he became a Vampire and what truths may lie behind their motives.