In Paris 1870, three wandering souls find themselves in a city set to descend into war. Anne is a former patient from a women's asylum trying to carve out a new life for herself in a world that doesn't understand her. Newcomer Lawrence is desperate to develop his talent as a photographer and escape the restrictions of his puritanical upbringing. Ellis, an army surgeon, has lived through the trauma of one civil war and will do anything to avoid another bloodbath. Each keeps company with the restless beasts of Paris' Menagerie, where they meet, fight their demons, lose their hearts, and rebel in a city under siege.