Un homme nommé Marco, forme avec son frère Jacobo un duo de mercenaires récemment embauchés pour protéger des propriétaires terriens face à la révolte paysanne qui gronde.
A young writer descends into madness. Alienated, neurotic, and plagued by guilt, Michele retreats from reality, loses interest in work, and comes to the brink of suicide before being sent to an asylum for shock therapy. Escaping from the asylum, Michele returns to his boyhood home, where he learns the reasons for his present mental state.