The sea around Minamata was heavily polluted with mercury during the 1950s and 1960s from the Chisso Corporation's chemical factory. This highly toxic chemical bioaccumulated in shellfish and fish in the Yatsushiro Sea which, when eaten by the local populace, gave rise to Minamata disease. The disease was responsible for the deaths and disabling of thousands of residents, all around the Yatsushiro Sea. The marine ecosystem was also extensively damaged.

Devotion investigates the extremely complex and heirarchical relationships among a committed group of Japanese filmmakers who dedicated up to 30 years of their lives making films for one man-Ogawa Shinsuke. Members of Ogawa Pro filmed the student movement of the late 60's; the fight by farmers to save their land from government confiscaton for the Narita airport at Sanrizuka; and the village life of a small farming community, Magino Village, in northern Japan. These heartbreaking and sometimes funny stories have never been told on film before. Rare footage, stills, and diaries with interviews with Oshima Nagisa, Hara Kazuo and Robert Kramer make this historical inquiry visually exciting as well as valuable.