In post-World War II Japan, Iwao Enokizu, a seemingly ordinary man, embarks on a horrifying crime spree that leaves a trail of death and destruction. Outwardly a family man, he is driven by deep-seated anger and resentment that propel him into a life of crime. Born to a Catholic family and emotionally distant from his devout father, he struggles with his own wayward impulses. Disillusioned with the legal system and societal norms, he begins his descent into violence, setting off his criminal activities by murdering two men. The police are soon on his trail as his actions become increasingly erratic and deadly.

As Enokizu's journey continues, he takes on various identities to evade capture, leading a duplicitous life punctuated by both brutality and moments of unintended tenderness. His heinous acts shock the nation, while his relationships with mistresses, accomplices, and strangers further reveal the complexity of his disturbed psyche. The narrative oscillates between his ongoing crimes and the flashbacks of his troubled past, painting a chilling portrait of a man who defies easy categorization. While Enokizu eludes the law for some time, the consequences of his actions reverberate through the lives of those he encounters, culminating in an unrelenting exploration of human depravity and societal decay.