France, 1572. Hospitaller Matthias Tannhäuser arrives in Paris to pick up his wife, who has been invited to the court for a wedding. The knight has seen a lot in life: he has gone through more than one war, he is used to killing and burying loved ones... But nothing he has experienced before can compare with what he will have to endure on this night, August 23rd, the night before St. Bartholomew's Day. The most beautiful of the world's capitals is plunging into bloody chaos, which began with pogroms against infidels and quickly turned into a war of all against all. In the midst of madness and carnage, Matthias rushes through the deadly labyrinth of city streets in search of his beloved - and quickly realizes that an unknown enemy is already hunting them both...