Outwardly Janos and Erno Witman seem like typical middle class teens, but beneath their facades of normalcy, the two are deeply disturbed and obsessed with the nature of sex and death. Leaving much to the viewer's imagination, this horrific and highly atmospheric tale begins in a small Hungarian town in 1914. The brothers live a happy, well-adjusted life until their father, a tax inspector, suddenly dies in terribly painful manner. After the funeral, Janos and Erno pay a nighttime visit to his grave and begin reflecting on death. They spy a big owl which they capture. On the way home, they find a dog tied up outside a bar and steal it. Six months pass. When their biology teacher dissects a frog in class one day, the two renew their fascination with death and begin experimenting on their pets -- their experimentation occurs off-camera. Their lives become even stranger when Janos becomes obsessed with a young prostitute.