A leading Chinese human-rights activist is murdered in a London street. Popular international athlete El Howard tests positive for performance-enhancing drugs. The connection? They both oppose China's bid to stage the Olympics. El is desperate to prove her innocence and turns for help to barrister Charles Evans. Urged on by his daughter Cate, Charles takes the case. But it becomes clear that someone wants a 'Guilty' verdict - and will stop at nothing to get it. Cate's life is threatened, and Charles faces having to choose between her safety and his own integrity.