After Paul Bronson graduates from a black college in the South, he accepts the invitation of Chicago gambler LeRoy Giles to vacation in Chicago. LeRoy, who has been having a secret affair for three years with singer Dinah Jackson, the wife of Sam Brown, owner of the Red Lily nightclub, has brought Paul to Chicago to fleece him, but Paul attracts Dinah's attention and they become involved during the next month. Paul wants to marry Dinah, but she refuses, saying she only wants their affair to continue as it is. After Paul refuses money offered by Dinah, he meets Evelyn Martin, who recognizes him from college and who is trying to run a beauty parlor. Evelyn and Paul have lunch together and are seen by LeRoy, whom Dinah has supported financially and who is upset about her affair with Paul. LeRoy tells Dinah about Evelyn, and she threatens to ruin Paul. After Paul tells Dinah that he has decided to go home, she arranges for LeRoy to drug and rob him. LeRoy doubles the dose and almost kills Paul. After Paul overhears LeRoy and Dinah discussing his money, he gets it back from LeRoy and, still groggy from the drug, goes to the Red Lily. Meanwhile, Sam's detectives tell him about Dinah's affair with LeRoy. When Sam catches them together, he orders her bank accounts closed and charge accounts canceled. LeRoy shoots Sam and puts the gun by his body. After Paul comes in dazed and picks up the gun, Dinah accuses him of killing Sam. She pays LeRoy to leave town and is able to keep Paul in town and away from Evelyn because of his confusion about the murder. However, Paul, now the manager of the Red Lily, meets Evelyn again, and after he tells Dinah he is through with her, she reports him to the police. After Dinah, on drugs and intoxicated, has a mental breakdown, her car is hit by a train and she is killed. Her affidavit seems certain to convict Paul when Ching Li, a Chinese man who worked and lived at the Red Lily, confesses to police that he witnessed the murder. Paul is freed and leaves the city with Evelyn.