"Impossible is the definition of an event a moment before it happens". 

An experienced mountaineer, who has paid with many years of imprisonment for his participation in an anti-authoritarian organization, finds himself on the same mountain path with his former comrade and informant. And the impossible happens; The "traitor" is retrieved dead from the depths of the cliff. Is there a culprit? Through the process of an interrogation, two different perspectives of morality, struggle, and betrayal unfold. The interrogator and the accused each fight for their own justice. 

The Impossible is one of Erri de Luca's most important works, as it combines his distinctive literary writing with his political discourse.