Based on a work of Josep Maria Benet i Jornet entitled "Testament", the film tells the story of an aging professor of medieval literature with the dilemma of deciding who will inherit his essay on "The Book of friend and loved" by Ramon Llull. Feeling near death as a result of illness, he discovers that the ideal person is a young and intelligent student he is in love with and who is dedicated to male prostitution.

Arián, a young Basque girl, idealistic but naive, joins a ruthless terrorist gang and, hoping to prove her commitment, volunteers to participate in the kidnapping of the daughter of an important businessman.