Elias, a vampire, is a veteran NYPD detective who has lived for two hundred years. By using a special suppressant to keep his bloodlust in check, he specializes in solving serial murder cases involving the supernatural. Liam, a passionate human rookie recently transferred to the force, is obsessed with uncovering the truth behind his younger brother's disappearance years ago. The two are forced to become partners, but as their investigation deepens, the rookie makes a shocking discovery: the culprit he has been hunting for all these years is none other than his own calm and composed partner—and his brother, in fact, is still alive.
