Early one fine autumnal morning in 2001, an old man is found asleep on Hampstead Heath. Abruptly awoken by two dog patrollers, a struggle ensues resulting in the oddly-dressed character being arrested facing a minor assault charge. Rookie barrister, George Winsome, is tasked with defending the old boy who believes himself to be the mythical character, Merlin. When the victim of the assault unexpectedly dies the resulting manslaughter case turns into...