| Release Date | May 12, 1966 | |
|---|---|---|
| Status | Released | |
| Original Title | Anónima de asesinos | |
| Runtime | 1h 32min | |
| Budget | — | |
| Revenue | — | |
| Language | Spanish | |
| Original Language | English | |
| Production Countries | Germany, Italy, Spain | |
| Production Companies | Juan de Orduña, P.C.Theumer FilmproduktionPEA | |