During World War II, the Japanese Imperial Army had reportedly used hospitals in Singapore and Tampoi, Malaya, as secret laboratories for germ warfare. The story, set in this period, tells of two dedicated Japanese officers who seek to serve their Emperor in the best way they know, but take contrasting approaches in trying to change the course of the war. Depicting the two faces of Zen are the evil Col. Saito and the idealistic Major Koji. Inevitably, their paths cross, culminating in an exciting and explosive climax.