A police inspector instructs his men on how to behave by explaining the development of two criminal cases.
Margot
Anselmo
Inspector jefe Nogués
Inspector Blasco
Inspector Antonio Rius
Ricardo Pérez
Madame Pérez
Comisario
Comisario Ramos
Herbert Gast
Turista
Súbdita norteamerica (no acreditado)
Policía del tren (no acreditado)