14th-century Franciscan monk William of Baskerville and his young novice arrive at a conference to find that several monks have been murdered under mysterious circumstances. To solve the crimes, William must rise up against the Church’s authority and fight the shadowy conspiracy of monastery monks using only his intelligence – which is considerable.

No sooner does Italian-American widow Loretta accept a marriage proposal from her doltish boyfriend, Johnny, than she finds herself falling for his younger brother, Ronny. She tries to resist, but Ronny lost his hand in an accident he blames on his brother, and has no scruples about aggressively pursuing her while Johnny is out of the country. As Loretta falls deeper in love, she comes to learn that she’s not the only one in her family with a secret romance.

In medieval Europe, crusading knights massacre a village full of suspected devil worshipers and build a large Gothic church above the cursed remains. It is now present day, and this elaborate cathedral still stands. But when its sealed crypt is accidentally reopened, a group of people trapped inside the church become possessed by the fury of the damned! Can the blood of the innocent survive this unholy communion, or will the ultimate demonic evil be unleashed upon the world?!

A young man returns from Rome to his sister’s satanic New York apartment house.