Arthur (Al Pacino Al Pacino) is a smart and capable lawyer who lives and works in the busy city of Baltimore. Unlike most of her peers whose lust for profit can give up the bottom line for money, Arthur always adheres to his own code of justice, speaks for small potatoes and never goes against his conscience. Arthur came out of the mud without letting his peers stay away from him and regarded him as an outlier, but Arthur did not care. One day, in court, Arthur offended Judge Henry (John Forsyth John Forsythe), and the two got into trouble. Who knows, when Arthur saw Henry again, the latter had been reduced to a prisoner for the crime of rape. Henry asked Arthur to defend himself, and if Arthur did not follow, it would certainly have a devastating impact on his future career path.