Are the Portuguese afraid of the changes after the Estado Novo dictatorship?

Colonial war in Africa. During a patrol, in the woods, a Portuguese soldier steps on a mine, that will explode when he raises his foot...

"The Butterfly in the Cage" is a novel by Luís Filipe Costa adapted to film by the author, it follows the daily lives of several people connected to newspapers, television, film and theater in Lisbon, in the days leading up to the revolution of 25 April 1974.