In Ben Hopkins's distinctly surreal and refreshing Tomas Katz, Fisher plays - a la Alec Guinness - nine different characters, as the mysterious figure of Katz patrols a London on the brink of apocalypse, inhabiting various people's bodies. Having met Hopkins at Oxford University, where the pair began to co-write the script, Fisher would later go on to star in the director's debut, Simon Magus, before returning to Tomas Katz.