The year is 1775. King Gustav III of Sweden has been married for nine years, to Danish princess Sofie Magdalene. Largely a political match - and one made against his mother's wishes - the marriage has thus far not been consummated. The word is out. To secure an heir to the throne is paramount. The safety of the realm and the King's reign hangs in the balance. The King decides to employ his trusted Master of Horse Munck - a womanizer of some repute - to find a solution to his problem.