"Three Skeleton Key" is a gripping and haunting episode that originally aired on October 19, 1958. The story revolves around three men working in an isolated lighthouse on a desolate rock off the coast of South America, known as 'Three Skeleton Key.' When a shipwreck occurs, it brings a horde of rats, leading to a terrifying struggle for survival as the men find themselves imprisoned by the invading rodents. The tension and horror escalate as their situation becomes increasingly desperate, culminating in an unforgettable climax.