A disturbing secret buried behind convent walls. Little Imma is only eight when she is taken in as a foundling in a Trier convent. Her extraordinary talent for writing and painting is quickly discovered, and Imma soon accompanies Abbess Ada on all her journeys. But the novice longs more for the security and seclusion of the monastery. When she finally wants to take her vows to become a nun, Ada refuses her consent. The mistress of the convent seems to have a reason for her refusal, a reason that has to do with the orphan girl's origins...