Sirena.

It is Easter in town and magic and mystery come to life as a commander makes inquiries about a man who has been found dead. His inquiries begin in a brothel where a singer who calls herself Soledad, who is hidden by Coral, the owner of the place, entertains. The singer seems to carry from birth the curse of the sirens: "Every man who falls in love with her will die" and unless she breaks it she must always run away, without escaping her own destiny.