The world is upside down: Munch is on jury duty. In the opinion of the President and the Attorney General, the appeals case of Martin Richard, accused of killing his wife, is an open and shut case. But nobody expected Munch to show up. She immediately thinks the defendant might be innocent, but she has to act fast. She only has three days to instill doubt in the eleven other jurors. Meanwhile, Gaspard finds his father, a petty con man. Can the two of them make amends?