Héctor Belascoarán leaves his corporate job and dull marriage to become an independent detective and tackle shocking criminal cases in 1970s Mexico City.

Luis Gerardo Méndezas Héctor Belascoaran
Paulina Gaitánas Irene
Irene Azuelaas Elisa Belascoaran
Silverio Palaciosas Gilberto Gómez Letras
Enrique Arreolaas Federico Paniagua
Nailea Norvindas Marisa Ferrer
Gabino Rodríguezas Javier "El Gallo" Villarreal
Ari Albarranas Sor Alicia
Macarena Garcíaas Virginia