An `undead' private investigator helps the living, instead of feeding on them, by using his acute vampire senses. His unending ordeal is made more complicated by his attraction to an ambitious reporter and by his bloodsucking bride who forever changed his life 60 years ago with one bite.
In the series finale, Mick and Josef team up with other area vampires to protect their secret identities after a murder investigation threatens to expose them. The crime in question occurs when a vampire kills a human in a moment of passion.
Mick discovers Coraline's secret to becoming fully human again, but he also learns that it comes at a high price. Meanwhile, Beth receives some heartbreaking news and deals with it alone, since she is angry with Mick.
Mick hunts for an assassin hired to kill Josef and learns a secret Josef kept from him for more than 40 years. Mick also discovers the hit was put out by a dying man with a personal vendetta against Josef.
Beth gets jealous when Mick works on a case with a female photographer who bears a striking resemblance to his ex-wife. Beth then researches the woman's past and discovers the mystery lady isn't who she claims to be. As for the case, Mick is hired by a CEO to follow his trophy wife who may be having an affair. During the probe, Mick suspects the husband may be planning to murder his unfaithful spouse.
Mick investigates an arson that destroys a legendary Hollywood hotel. The probe is made more mysterious when Mick realizes the fire eerily replicates the circumstances under which his former wife, Coraline, died. In addition, a woman Mick is working with bears a striking resemblance to Coraline.
Mick searches for a teen vampire who targets female escorts he locates on the Internet. Of course, the boy is actually much older and only looks like a teenager. Also, Mick tries to avoid Beth after their intimate moment when she saved his life, but she wants him to admit that there is something special between them.
A 22-year-old woman who is set to testify against an arms dealer charged with murder disappears after the safe house she is in is ambushed. Mick is hired to track her down, but when he finds her they are forced to walk through the hot desert, which depletes Mick's strength. Beth rushes to save Mick's life, but the only way to do that is for him to drink her blood.
A convicted murderer who knows the truth about Mick's immortality is released from prison after serving 25 years. New evidence indicates he was wrongly convicted, but Mick knows he's guilty and will kill again. Upon his release, the man targets Mick as his next victim.
Mick probes the vampire-like murder of a college student and reconnects with a woman (Sophia Myles) from his past, who is now an investigative reporter. It's soon learned that the victim was taking an ancient mythologies class taught by a man who claims he's a vampire.