Detective Michael Colefield is about to be best man at his partner Jack's wedding, but when Jack disappears on the eve of the ceremony, Michael has to pick up the pieces.
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A blacked-out Mercedes is attacked and the squad, suspecting that the car's driver was a vampire, trace the owner to Lester Hammond, son of a wealthy financier.
A barrister, Marion is attacked but a mysterious protector kills her assailants and the squad suspect it was a vampire.
The squad are called to a Catholic school where teenager Gary has stabbed his priest. They suspect vampire involvement, but Michael protests he's uncovering evidence of a paedophile ring.
A Brazilian man steps off a plane bleeding from visible vampire bites.
The vampires want Angie's husband back to perfect their research into synthetic blood. They want his ashes in exchange for Kirsty.