Tibere is a small-time hood who tries to get one of three airline hostesses to help him in his gold-smuggling operation in this light comedy. One woman is a snob, the second is adventurous, and Melanie is sentimental about love.

After discovering a fragment of a Phoenician amphora while in Corsica, 25-year-old scuba diver Gerard goes hunting for a treasure Troilus is alleged to have lost in the sea following the Peloponnesian War. His meeting with the lightkeeper's beautiful daughter Manina jeopardises his goals.