The year is 1848. Paris is on the brink of yet another revolution, and the prisons are overflowing with guilty and innocent alike. In the dusty and neglected Aviary Attorney legal offices, Jayjay Falcon and Sparrowson receive a lucrative offer. Bourgeoisie kitten Caterline Demiaou has been accused of murder, and the Demiaou estate are willing to pay a sizable sum for a defense lawyer who can claim a Not Guilty verdict. Falcon will surely take on the case, but is somebody conspiring to stop him?