
Alan Whitmore, a young American researcher, goes to Budapest to visit Professor Roth, with whom he collaborated on a secret project called "Intextus" while a mysterious killer in on the loose...

During the 1570s, in the convent of Sant'Arcangelo di Baiano, after the death of the mother superior, a power struggle rages on, as one nun, who comes from a powerful family, is willing to do anything to become the new abbess.