A combination of fiction and historical reality, The Fierce Jaws links a reflection on the mother-daughter relationship with an episode from history - the trial of Italian nun Benedetta Carlini during the Counter-reformation.

Entre fiction et réalité historique, «As fauces feroces» mêle une réflexion actuelle sur la relation mère-fille et le procès historique de la religieuse italienne Benedetta Carlini pendant la Contre-Réforme.

 Who could imagine that in a place like Santa Isabel, a retreat house of the Opus Dei on the outskirts of Bilbao, among old friends called together to remember the good times, a tragedy could happen?

A story told by a Breton nobleman that takes place during the French Revolution, a period chosen by Cunqueiro in order to surprise us with his historical knowledge and command of different literary registers.