A woman's breasts are briefly seen through her wet shirt. Other than that, there is no other nudity throughout the entire runtime.
Two women write a love letter for their piano teacher.
A woman removes her shirt (only her bare shoulders is shown) and while nude hugs a man and forces him to sex. (Off screen)
A man is massaging his wife.
A woman tells her piano teacher that she is in love with him and he slaps her.
In one scene the maid is sleeping with the man in bed while he is shirtless.
In one scene the maid bites the man's shoulder and then begin to kiss his leg. Then she sits in his lap while the camera shows their legs only. Sex is implied.