An American nightclub singer in 1940's Singapore becomes a spy for America in an effort to get back at the invading Japanese army. Based on a true story. An American nightclub singer in 1940's Singapore becomes a spy for America in an effort to get back at the invading Japanese army. Based on a true story. An American nightclub singer in 1940's Singapore becomes a spy for America in an effort to get back at the invading Japanese army. Based on a true story. An American nightclub singer in 1940's Singapore becomes a spy for America in an effort to get back at the invading Japanese army. Based on a true story.