Everything is going well for Arthur Beauchamp in his early middle age. Life is so good for the top-notch defence lawyer that, in a moment of career restlessness, he decides to switch sides, just the once and prosecute a young man charged with murdering a clown. Beauchamp is confident he can prove Randolph Skyler is guilty. Confident, but still worried and surprisingly blind to how precarious the evidence is - and, worse, to the fissures opening in his personal life.