Gilles and Dominique appear out of nowhere in the castle of Baron Hugues at the end of the 15th century. Dominique courts both Hugues and Ann's fiance, while Gilles charms Anne, Hughes' daughter. Gilles and Dominique are demons assigned to help those in need, not lovers. It's unfortunate for Gilles that he's snared by an innocent like Ann. So how exactly are they going to deal with Satan?