The story takes place in San Francisco in the 1930s and 1940s. Sam Spadeand Archer are a pair of detective partners. Their task is to shuttle between the cities in all kinds of colors. The landlord handles the case. One day they received a deal, and a noblewoman entrusted them to find her missing sister. After they fully understood the relevant information, they discovered that the lady's sister was said to be with a mysterious man named Seth. Originally they thought it was a very simple tracing case, but soon they realized that things were far from being as simple as they thought. There is an amazing network behind the scenes of this case, as well as the intricate circumstances of the case.
Archer was killed in the process of investigating the case, and Frod Sess was also brutally murdered and died. The police soon intervened, but the police's conclusion was surprising. They thought that Spade might have an affair with Archer's wife Ava and killed her partner. For a while, Spade was not able to dig further. The truth of the case is the opposite and it is hard to protect itself. Spade is unwilling to give up. He is still secretly exploring the case. He went to visit the noblewoman and learned that her real name is Bridge. Elmer and others reselled antiques. As they continued to deepen, Gutman approached Spade and asked them to get a priceless treasure-the "Malta Eagle" statue. And this is where Spade is in a very difficult situation, because if he wants to get this statue, there must be someone who has to bear the responsibility for murdering Archer before he can surrender the statue.
