A female teacher asks a bus driver to take her urine sample to Buenos Aires for its analysis.

An impoverished and alcoholic peasant is threatened with eviction and struggles to survive an endless and unbearable drought. In his habitual state of drunkenness, his only salvation seems to be the prostitution of his daughters.

Isidora, an old woman, discovers that her mind is quickly deteriorating. At an apparently relaxed dinner table, she will desperately try to hide her state from her daughter, a demanding woman who awaits any sign of senility in order to take way everything she has.