Private detective Philip Marlowe is hired by the wealthy General Sternwood to investigate the gambling debts of his wild younger daughter, Carmen. During the investigation, Marlowe learns that Sternwood's older daughter, Vivian, might also be involved in shady dealings. As Marlowe digs deeper, he discovers a complex web of blackmail, murder, and deception involving various figures from the city's underworld. His encounters with Vivian hint at hidden motives and mutual attraction, complicating his professional duties.

As he interrogates suspects and uncovers clues, Marlowe finds himself embroiled in a series of dangerous confrontations. Each lead seems to offer more questions than answers, drawing him further into the intricate puzzle. Moving through a maze of intrigue, he must navigate the blurred lines between right and wrong while maintaining his integrity and determination to protect his client. The intricate layers of betrayal and loyalty build toward an elusive truth that threatens to upset the lives of everyone involved.