A will forces brothers Adolfo and Federico to live together for a year. Though both are married, they sleep with each other's wives.
Pirates capture a Spanish ship. After having landed on an island, they try to sell the surviving crew, especially the women. One of them is protected by a pirate who gained her as a prize for having saved the captain's life in the battle that ensued. Suddenly a man masked in green arrives and performs - ever haunting - in favour of the Spanish.
