It's 1310 and Paris is alive with talk of the trial of the Templars. Religious repression is on the rise, and the smoke of execution pyres blackens the sky above the city. But sheltered behind the walls of Paris's great beguinage, a community of women are still free to work, study and live their lives away from the domination of men. When a wild, red-haired child clothed in rags arrives at the beguinage gate one morning, with a sinister Franciscan monk on her tail, she sets in motion a chain of events that will shatter the peace of this little world-plunging it into grave danger.