Chinatown revolves around Hollis Mulwray family, a wealthy landowner in California. Evelyn pretends to be the wife of Hollis, a man named Ida Sessions has a private detective Jake J. J. Gitters investigate her husband. In the course of the investigation, Jake discovered many scary things ... As a former policeman in Chinatown (a symbol of Los Angeles), Jake tried to separate the bad from the good and punish the guilty, whitewash for the upright.