Preest is a masked vigilante detective, searching for his nemesis on the streets of Meanwhile City, a monolithic fantasy metropolis ruthlessly governed by faith and religious fervor. Esser is a broken man, searching for his wayward son amongst the rough streets of London's homeless. Milo is a heartbroken thirty-something desperately trying to find a way back to the purity of first love. Emilia is a beautiful art student; her suicidal art projects are becoming increasingly more complex and deadly.

Initially, Ewan McGregor, Paul Bettany and John Hurt were set to star; the producers then decided to cast younger actors. Eva Green remained the only member of the original cast.

Emilia:
Life's too much of an adventure as it is without making anything else up.