An industrial espionage film.

A young man named Kijima who works as a pianist in a small bar is surprised when one of the customers asks if he won't pretend to be the fiance of his sister. He is even more surprised when he is offered a million yen to play this apparently harmless role. Actually, it is anything but harmless. Both the customer and his sister are involved in a jewel robbery in which they have double-crossed two of their accomplices who are now out of prison and thirsting for revenge.

Three stories about the relationship between men and women: "Playgirl" (Masumura/Shirasaka), "Company No. 2" (Yoshimura/Kasahara), and "San Nyotai" (Kinugasa/Shindô).

Namiko is married, but has an infatuation with Ishizuka who runs a nightclub. The businessman is also planning on wrecking the company of Namiko's husband. As personal lives and professional careers intertwine and cross one another including a love triangle dangerously, the affair is taken up a notch following a murder.

A sequel to the popular "The School of Spies", this film continues the adventures of one of the graduates who is assigned to crack a powerful spy ring working out of Kobe. Various people are suspected but, finally, it seems that an Army captain and his geisha friend might lead them to the ring.

In late 1940 the Japanese were anxious to conclude peace in China and to that end sent Colonel Hidaka to inaugurate negotiations. He was mysteriously assassinated, however, when his car was blown up. The General Staff Headquarters in Japan, sends Lieutenant Shiina, a graduate of the famed Nakano School of Spies inaugurated by Colonel Kusanagi, to investigate the matter. Arriving in Shanghai, he disguises himself as a Chinese coolie and sets out to watch for developments, the only clue being a silver dollar found beside what was left of the victim.

Nakano Institution is the so-called ‘Spy School’ where many young men are trained to be excellent spies. They erase their names, families, even lovers to bury themselves in training. Jiro, one of the cadets, successfully seize the secret code of English army to pass the final exam. However, he reaches the crossroad when his fiancee Yukiko turns out to be a spy of the enemy.

On the eve of the Russo-Japanese war at the beginning of the 20th century, small-town girl Okane has married an old wealthy man to escape a life of poverty.