A foreign spy using the Sorge alias is assigned to Tokyo the capital of Japan just prior to the outbreak of World War II and in the midst of the Japanese imperial ambitions in Eastern Asia. The spy becomes acquainted with a sympathetic communist who like he is attached to the ideals of freedom and rule of the masses. Sorge is able to feed the Soviet Union useful information regarding the Axis allies and their movements in Asia and beyond.

The myth of the Sun Goddess who founded Japanese society is seen through the lens of a modern view of history.

Successful and married with children, paper-mill owner Jihei knows better than to contradict the strict social and moral codes of 18th-century Japan. But when he meets the lovely courtesan Koharu, he becomes a man obsessed. Koharu returns his love, even foregoing other customers while Jihei schemes to somehow buy her freedom. His efforts yield ruinous consequences for his business and his family life, and Koharu is meanwhile purchased by another client.