Yes, there might be some in certain fictional works. For example, in some melodramatic novels, such as those exploring complex social relationships and power dynamics, this kind of plot might be used as a way to create tension. However, it's not a very common or mainstream plot device, but when it is used, it often serves to highlight issues like power abuse, betrayal, and the breakdown of moral and ethical boundaries in the context of the story.
There may be some stories out there that touch on this concept. In literature, it could be part of a larger exploration of human nature and the darker aspects of society. For instance, it might be used to show how power can corrupt a person, like a black boss using his position to try and seduce an employee's white wife. In movies, it could be a sub - plot to add drama and conflict, but it's not a widely - known or frequently - used story type. It might also be found in some noir - style stories where moral ambiguity is a key element.
Well, I'm not sure about a specific one right off the bat. But in general, if there were such stories, they would likely be quite controversial. They could be used to explore themes of race, class, and power. Maybe in some independent films that aim to shock the audience or make them think about uncomfortable social situations, there could be a storyline like this. But again, it's not a plot that you see every day.