Fantasy Island (1978)

S3E11 The Mermaid / The Victim

In "The Mermaid," Professor DeHaven, a marine biologist, faces a dilemma as he grapples with his fascination for a captivating mermaid while trying to remain loyal to his wife. Meanwhile, in "The Victim," Julie Brett ignores Mr. Roarke's cautionary advice, leading to her abduction by a man who coerces women into a life of prostitution, putting her in a perilous situation.