Abelard, a famous teacher of philosophy at the cathedral school of Notre Dame, falls in love with one of his students, Héloïse d'Argenteuil. A sixteen-year old girl raised in a convent, Héloïse has an intellectual curiosity and rebels against the status of women in 12th century Europe. When others begin to suspect their relationship, Heloise's uncle Fulbert and the bishop of Paris work together to put a stop to it. Héloïse becomes pregnant with Abelard's child, and they are married in secret. Abelard struggles for acting against the will of God, yet is unable to escape his love for Heloise.

"Forgive us father for we have loved."