Two men (both being junior officers) are being held in a penal military prison. The room which they share looks like a dark cellar with a dripping sewer pipe running through it. One of the prisoners seems to be delirious and never stops talking. He tells stories of his past, does push-ups, comes up with crazy ideas and even mimics a heron in an attempt to cheer up his cellmate, leading only to an increase in his anger. The clumsy talker receives a violent beating from the enraged prisoner.The angry officer is then taken from the cell by a guard to clean up a dirty toilet bowl with a fork. Some time later, after the angry officer falls asleep, the insane officer defecates on their shared plate for eating (calling it "sweety bread"), smears feces over his belly and consumes a large portion of it. After doing so he offers a plate with the fecal matter to the other man right after he wakes up and drives him mad again. The two main characters go through a series of humiliating acts conducted by a guard and a captain who seems to have strong sadistic tendencies. The story resolves with an act of graphic violence, including rape, sodomy, disembowelment, committing suicide and having an uncontrolable urge to break out of the prison.