In this episode of Philip Marlowe, the detective finds himself entangled in a complex web of murder, deceit, and betrayal. A missing Confederate half dollar key to a string of crimes leads Marlowe to a trio of suspects - a sneaky collector, a gun-toting Treasury agent, and a cunning niece. As Marlowe unravels the mystery, he uncovers a plot involving blackmail, hired killers, and a deadly game for money and power. The tension rises as Marlowe races against time to uncover the truth and bring the culprits to justice in a thrilling conclusion of greed and treachery.