Suzanne (Anna Karina) unwillingly joins a religious order, but the presence of the kindly mother superior, Mme. de Moni (Micheline Presle), makes life seem bearable. When Mme. de Moni dies, though, she is replaced by Sister Sainte-Christine (Francine Bergé), a sadistic disciplinarian with a grudge against Suzanne. Suzanne obtains a transfer to a different convent -- until she discovers that her new abbess, Mme. de Chelles (Liselotte Pulver), is a sexual predator.