Sexuality on display is all discrete and implied. However, a major portion of the plot involves illicit sex.
A man is invited into a room where a woman is bathing and proceeds to have a conversation with her while she is in the bathtub. Nudity is obscured by the water and the woman covers herself with a towel after exiting the tub. However, the two kiss passionately (if chastely by modern standards) afterwards and it is implied that they have sex.