When a worker is found murdered on the construction side, the investigation swiftly turns from things criminal to the political circumstances surrounding the building itself. Widespread corruption and neglect by the builder himself are seen to have brought the situation about. Much of the movie is filmed using hand-held cameras, and the majority of the dialogue is in the difficult-to-understand and very slangy Spanish dialect of Mexico City's bricklayers.
Ignacio López Tarso
Adalberto Martínez
Jaime Fernández
José Alonso
Salvador Sánchez
Katy Jurado
José Carlos Ruiz
David Silva
Eduardo Cassab
Salvador Garcini
Gerardo Zepeda
Mario García González
Ramón Menéndez
Guillermo Gil
Leonor Llausás
Evangelina Martínez
César Bono
Manuel Garay
Baltazar Oviedo
Agustín Fernández
Regino Herrera
José Luis Avendaño
Bernabé Palma
Arsenio Campos
Pedro Damián
Luis Torner
Graciela Lara
Yolanda Rigel