Be My MasterMovie
A married ad designer (Meguro) is having an affair with a married woman (Ming). When an ad agency head visits Meguro, it's revealed that he's Ming's husband (Shanwei). Shanwei warns Meguro to not only continue the affair but also record (for Shanwei) and "mentor" Ming in a series of escalating sexual domination/humiliation rituals. If Meguro refuses, Shanwei will disclose the affair to everyone, including Meguro's wife.
About Be My Master
Be My Master is a 2018 drama movie directed by Hideo Jojo.
The production information lists a runtime of 1h 44m, production credits from Japan, an original language code of JA.
The credited cast includes Katsuya Maiguma, Aika Yukihira, Yurisa, Chiharu Yamane. The synopsis above summarizes the central premise without adding details beyond the available title information.
