Michael Brock is a lawyer in Washington DC, and his current assignment is to find the facts behind a break-in at a law office nearby.
The Street Lawyer begins by describing the initial incident - a homeless man breaking into a law office called Drake and Sweeney, which is notably the most powerful and influential law office in the city.
The homeless man is shot and killed by a sniper after he had taken many of the lawyers hostage at gunpoint, including Michael Brock. Michael, now looking back on the incident, decides to dig deeper into the story and motives behind what the homeless man did, despite the fact that he was deemed an "insane" shooter.
When the homeless man had taken the lawyers hostage, he had told of how the owner of the firm was a bad person. Brock discovers that, in a way, this is true, as he was responsible for evicting a poor family from their home because another work of construction was set to be built there. The members of the family died of hunger and the cold weather. Brock discovers that this eviction was strictly illegal.
Brock, now realizing that law has no morals, quits his job at Drake and Sweeney's. He begins work at a health clinic, where he can directly help the homeless and their ailing families. He regains a sense of his morals, and, eventually, the head of the law firm openly apologizes for what he did.