Mil Mascaras investigates a nest of fifth-columnists operating out of a carnival (!) led by a Nazi (John Carradine) attempting to resurrect the Third Reich posing as a circus clown .
| Release Date | November 19, 1969 | |
|---|---|---|
| Status | Released | |
| Original Title | Enigma de muerte | |
| Runtime | — | |
| Budget | — | |
| Revenue | — | |
| Language | Spanish | |
| Original Language | Spanish | |
| Production Countries | Mexico | |
| Production Companies | Filmica Vergara S.A. | |