Andrés, an unsuccessful young pianist, witnesses a murder; but keeps silent for fear that the man he has seen next to the corpse will retaliate against him.
Susana Campos
as Laura
Carlos Estrada
as Andrés Salas
Antonio Casas
as Comisario Ruiz
José María Prada
as Don Sixto
Paul Eslheman
as Claus Hans
Alfonso Rojas
as Antonio
José Marco
as Inspector Vázquez
Emilio Rodríguez
as Julio Cuétar
