Passengers on a ship traveling from Mexico to Europe in the 1930s represent society at large in that era. The crew is German, including the ship's Dr. Schumann, who falls in love with one of the passengers, La Condesa. A young American woman, Jenny, is traveling with the man she loves, David. Jenny is fascinated and puzzled by just who some of the other passengers are.
Vivien Leigh
as Mary Treadwell
Simone Signoret
as La Condesa
José Ferrer
as Rieber
Lee Marvin
as Tenny
Oskar Werner
as Dr. Schumann
Elizabeth Ashley
as Jenny
George Segal
as David
José Greco
as Pepe
Michael Dunn
as Glocken
Charles Korvin
as Capt. Thiele
Heinz Rühmann
as Lowenthal
Lilia Skala
as Frau Hutten
