Finally, I have some more info on this. The film follows an elderly Japanese man recovering from a stroke at home. While his body weakens, his sexual desire grows strong. He becomes obsessively attracted to his young daughter-in-law, Satsuko (played by Fan Bingbing), who is caring for him.
In a scene, the old man masturbates under the table while imagining Fan Bingbing.
Satsuko is braless in one scene, wearing a shirt. Some cleavage is shown while she bends down.
Satsuko tells the old man she will shower and leave the door open. He interprets it as a sexual invitation, so he goes there and watches her bathe but we only see her legs.
In one scene, he gets on his knees and sucks Satsuko’s toes while she has soft moans.
In a graphic dream sequence, the man sees Satsuko in a suit with an eel. He gets on all fours while Satsuko inserts the eel into his rectum.
The film is based on a novel, which also doesn’t consist of any female nudity, so the director has adapted the film properly. But I would’ve liked it more if there were at least some topless shots. But this is all we got.

