Amid the decadence of the Ancien Régime, Joseph Ignace Guillotin is responsible for investigating mysterious murders. He then discovers the existence of "blue blood". This unknown virus spreads within the aristocracy. The virus has devastating effects: the infected nobles attack the "little people", upsetting the established hierarchy. The revolt spreads and is the prelude to the French Revolution.
In this re-imagined history of the French Revolution, the guillotine's future inventor uncovers a disease that drives the aristocracy to hug commoners.
La Revolution - Chapter Five - Blue Blood Synopsis and Schedule