A wealthy landowner, "The Dauphin," enjoys a decadent life of hunting, drinking, and womanizing. He oversees his estate, the Laguna, with his barren wife, his one-armed manservant, and his treasured guard dog. When a sportsman (the film’s narrator) comes to the estate for his annual duck-hunting excursion, he discovers the body of the landowner’s wife floating in the lagoon and the manservant dead on his master’s bed. The Dauphin and his dog are nowhere to be found except for the mysterious barking sounds heard over the lagoon.
In Portugal, in the 60s, the corpse of a man appears on Dog's Beach. The corpse is identified as the major Dantas, a man wanted by authorities after his escape from a military prison where he was awaiting trial for insurrection.
The movie centers around the rape ritual of a minor by four young men, with the intention of freeing one of them of his past relationship with the girl.
