When American-born Katie takes her mother's ashes home to Ireland, she finds hunky but spellbound Seamus loitering in her suite at Castle Tullamore. Seamus is surprised Katie can see and hear him because he was turned into a spirit three hundred years earlier. He acts as her personal tour guide, not only showing her the historical sights but introducing her to voyeurism and a variety of other carnal delights. As frustrating as it is not to be able to touch each other, they push the limits as far as possible. Katie is determined to help Seamus break the spell cast on him by the wife of a previous lord, a woman he refused to take as a lover. With help from a few castle ghosts and the local witch, the two of them aim to free him and find a way to be together in the flesh.