In an imaginary future, Portugal consists of an association of states - North and South - with zones of specific influence. City under vigilance, Lisbon is inhabited by a repressed and militarized population. Maria and António stand out in this city and surrender themselves to a submersive love. 1978

The consuming passion between Pedro I of Portugal and Ines de Castro is brutally interrupted when Ines is executed, as a consequence of political intrigue and in the name of the kingdom's interests. Pedro, cruelly hurt, pursues the single-minded purpose of avenging his lost love. He captures and kills the executioners, and compels the nobility to acknowledge Ines as his lawful wife and Queen of Portugal.