An epic and sensual 17th century-set romance drama, based on the true story of the Marquis de Montespan. It covers the doomed and passionate relationship between the Marquis Louis Henri de Montespan and his wife Athenais, who became the mistress of Louis XIV, aka the Sun King. Although having one's wife spend time in bed with the monarch was perceived as a source of prestige for aristocrats at the time, the Marquis vowed to get his wife back at all costs.