Deep under the sea lives the mermaid Ariella, who wants nothing more than to live with humans. One day, bare-chested, she allows herself to be captured and pampered by tuna catchers. After the rowdy guys have pleasured Ariella, they throw the libidinous mermaid back into the water. Since then, the story has been making the rounds in the village pub every day. When Ariella saves the handsome photographer Jens from drowning, she falls in love with him during the intimate revival.