Based on a true story that stunned the world, "M. Butterfly" opens in the cramped prison cell where diplomat Rene Gallimard is being held captive by the French government - and by his own illusions. In the darkness of his cell he recalls a time when desire seemed to give him wings. A time when Song Liling, the beautiful Chinese diva, touched him with a love as vivid, as seductive - and as elusive - as a butterfly.