It is a sad world when Pelayo discovers an old man with large, weathered wings stuck in the mud. It has been raining for three days. The beach is a mixture of rotting crabs and sludge. Stench is everywhere. Worst of all, Pelayo's baby is ill with a fever.

Because the strange visitor possesses wings and speaks an unknown dialect, no one knows for certain who or what he is. He seems awfully decrepit to be a supernatural being. A neighbor thinks he's an angel who has come for the baby. Pelayo and his wife, Elisenda, suspect he is a sailor or castaway. The parish priest, Father Gonzaga, believes the old man is not an angel but rather an imposter.

After examining the man with wings, the doctor decides it is impossible such a creature is even alive. The old man is locked in a chicken coop and treated like a freak. People pay five cents to view him, and before long, Pelayo and Elisenda make enough money to build a mansion. Their newborn child regains his health.

When the boy is older, both he and the old man with wings contract chicken pox. The old man is mistreated and burned with a branding iron. All he eats is eggplant mush. The town is visited by many carnival attractions including a woman transformed into a spider because she defied her parents. People eventually lose interest in the old man. One winter he has a fever and is delirious. He not only survives but grows new wings. His clumsy attempts at flight eventually improve and one day he disappears into the horizon.