This film is a new version of The Prince and the Beggar. The story tells the story of a black Vietnam War veteran pretending to be lame and blind and exchanging identities with a white yuppie who feels good about himself in Philadelphia, which leads to a series of jokes. This film was originally tailored for Jean Wilder and richard pryor, the black-and-white comedy partners who became popular in 1976 because of Blood on the Silver Line. As a result, when the shooting started, dan aykroyd and eddie murphy co-starred. Both of them happened to be comedians of Weekend Night Live. Their chorus was very pleasant, so they set a box office record of 40 million dollars in Going Up a storey still higher. Winsop (dan aykroyd) became the minister of Duke Brothers, a big capitalist, at a young age. He is in charge of the company for Duke Brothers, engaged in futures trading and accompanied by beautiful women. He is the darling of high society. Valentine (Eddie Murphy) is a black punk who pretends to be disabled and begs in the street. Duke brothers are standard bloodsucking capitalists. One day, on a whim, they made a dollar bet on what would happen if Winsop and Valentine exchanged identities. So Winsop's bad luck came: he was framed for stealing, kicked out of the rich man's club, jailed for growing drugs, and someone bought sex to annoy his fiancee, lost his job and lost his house. However, Valentine rose to the top, lived in a big house, was served by servants, and spent a lot of pocket money on futures trading with Duke Brothers. When Winsop and Valentine found out that all this originated from the behind-the-scenes manipulation of the Duke brothers, they decided to take revenge together, answer blows with blows, and return futures with futures, giving the Duke brothers an unforgettable lesson!