A father, anxious for his son's financial well being, develops a special soda pop called Dopokoke which is laced with cocaine. Dopokoke is advertised as relief "for that tired feeling." The drink is a success, but the son becomes addicted to it, much to his father's regret. Loosely based on the allegations that the Coca-Cola company and other soft drink manufacturers laced their soda with dope.

During the Civil War a young soldier loses his nerve in battle and runs away to his home to hide; his sister puts on his uniform, takes her brother's place in the battle, and is killed. Their mother, not wanting the shameful truth to become known, closes all the shutters (hence the film's title) and keeps her son's presence a secret for many years, though two boyhood chums stumble upon the truth...

A greedy tycoon decides, on a whim, to corner the world market in wheat. This doubles the price of bread, forcing the grain's producers into charity lines and further into poverty. The film continues to contrast the ironic differences between the lives of those who work to grow the wheat and the life of the man who dabbles in its sale for profit.
Summary written by James Meek {james@oz.net}