Branwyn O'Tyre's estranged brother summons her for a healing ritual. Fearing he actually plans to arrest her for witchcraft, she drinks a protection potion before he arrives. Eirik, a Viking sea captain pretending slumber in the tavern corner, witnesses Branwyn's magic and offers her safe passage from Exeter if she will attempt to reverse a curse that plagues him. Alas, every woman who touches him falls madly but falsely in love with him. There's only one hitch. If she fails, Branwyn's heart will fall prey to the same madness...forever!