The movie was originally shot in 1972 under the title "Il giardino delle lattughe" (=The salad garden), but not released until 1975 when it was retitled "The Police Are Blundering in the Dark", a title that was possibly chosen because at that time 'poliziotteschi films' were more popular than 'giallo films'.
The director Helia Colombo was actually the songwriter and record producer ELIO PALUMBO (a.k.a Elio Pasquale Palumbo or simply Eliop) who is best known for "Tornerò", a love ballad he created for the Italian pop band 'I Santo California', which eventually sold more than 11 million copies worldwide.
Final film of Halina Zalewska.