I Am an S+M Writer (2000)

Kurosaki is an erotic novelist who uses his editor and a hired model to act out scenarios in his living room to use for inspiration in his writing. His wife Shizuko calls him a pervert but on the inside, she feels physically neglected. She tries to make him jealous, while also going after what she desires with someone else.

Unfortunately the movie I Am an S+M Writer is not yet available on HBO Max.