 At the end of the 15th century, two minstrels Gilles and Dominique come from nowhere into the castle of Baron Hugues. Gilles charms Anne, Hughes  daughter, while Dominique charms both Hugues and Ann s fiance. Gilles and Dominique are not really in love : they are sent by the Devil to desperate people. But Ann is so pure that Gilles is caught to his own trap... How will they fight against the Devil ?