Messiah is a British television drama series, broadcast on the BBC One network and produced in-house by BBC Northern Ireland, although the series itself is set in England. Made up of a series of occasional serials, the first, with two parts subtitled The First Killings & The Reckoning, was broadcast in 2001. It has been followed by Messiah 2: Vengeance is Mine (2003), Messiah III: The Promise (2004), Messiah IV: The Harrowing (2005) and most recently Messiah V: The Rapture (2008). The original production was based on a novel by Boris Starling: the subsequent installments have been written directly for television. Starling has a cameo as a murder victim's corpse in the first serial.