In Los Angeles, Detective Lottie Mason works undercover as a whore on the streets or a junkie with the vice-squad leaded by the corrupt Lt. Joe Morgan giving support and arresting clients and drug dealers. She is also having sessions with a police psychologist for evaluation because she killed a criminal. She also has troubled relationships and high debts with her credit card. When she works with the District Attorney Stan, they feel attracted for each other and have an affair. After an assignment where she was almost killed, she has a flat tire while driving home. She goes to a bar to kill time while her car is fixed. Completely upset, she meets the charming criminal Tony Perón that Stan is chasing, but unknown for her, and he offers a huge amount for her to go to his place. While in his fancy house, she regrets and tries to find a meas of escape. But she witnesses the execution of Tony, and she anonymously calls the police. In the house, she finds a key of a locker where there is a bag with one million dollars that Tony stole from drug dealers. While the police search the unknown woman, Lottie lives a dilemma about what to do with the money.