A vampire with a past and a homicide detective, Naoko "Nick" Tanaka has just transferred to the New York Police Department, where he works as Midnight - a vampire in the service of the human police. Like all officially registered vampires, he receives food delivered to the doorstep, lives in a state apartment and practically cannot sneeze so that the United States government does not know about it. Most of all, he wants to be left alone, allowed to live quietly his immortality, but he spent only two weeks in New York when everything went downhill.