Keith, an aspiring painter, struggles under the oppressive control of his dominant father while finding solace in Nanaly, a maid who resembles his deceased mother. While Keith views Nanaly as a pure muse for his art, she secretly leads a double life as a submissive servant subjected to the master's depraved whims. In a cruel act of psychological torture, the master forces Nanaly into a public sexual encounter right in front of Keith to shatter the young man's innocence and mock his artistic aspirations.
Keith is tasked by his father to sell a painting, leading him and his maids, Nanaly and Renka, to a decadent party hosted by a nobleman. When Nanaly is forced into a degrading public performance, Keith realizes his true feelings and violently rescues her from the nobility. After a daring escape aided by Renka, Keith and Nanaly cast aside their social differences and pledge their eternal devotion to one another.