A group of passengers traveling around the Mediterranean on a luxury liner enjoy various adventures and become romantically involved with each other.
| Actor | Role |
|---|---|
 Belinda LeeAdriana Bressan | Adriana Bressan |
 Walter ChiariWalter | Walter |
 Ugo TognazziUgo Lemeni | Ugo Lemeni |
 Sylva KoscinaLuciana | Luciana |
 Gino CerviComm. Lemeni | Comm. Lemeni |
 Elke SommerGreta | Greta |
 Caprice ChantalElena Le Garde | Elena Le Garde |
 Mario ScacciaEdmondo | Edmondo |
 Gabriele FerzettiAlberto Bressan | Alberto Bressan |
 Massimo SeratoNobile siciliano | Nobile siciliano |
 Gisella SofioMariella | Mariella |
 Ivan DesnyConte Luca di Sauvin | Conte Luca di Sauvin |
| MMalo St. GeorgeRagazza indiana | Ragazza indiana |
 Gino Bartalihimself | himself |