Is it someone in a horror movie whose soul has become possessed by the devil?
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No, it’s a cyclist. Whose face is splattered in mud (proving he’s a tough, fearless red-blooded man, presumably). Underneath the personal details it says
FAVOURITE RIDE: Killer Loop, Surrey Hills.
This flyer was being handed out at London Sky Ride and advertises the Cycle Show at Earl’s Court, 8 – 10 October.