An insurance investigator, Police Inspector Peretti (George Hilton)helped by a Brigadier (Manuel Zarzo) are assigned by his chief ((Saldo Randone) the investigation of a killing via mechanical digger . As there happens several murders with bloody and gruesome executions. Some drawings seem to implicate about anybody are dieing . Meanwhile the series killer goes on a real massacre on various unfortunate victims as a man supposedly commits suicide, a women is strangled, another attacked in her apartment. Slowly more people are found dead and the inspector investigates the strange killings with numerous suspects (Monica Randall, Alfredo Mayo , William Berger).
Tonino Valeri 's great success is compelling directed with startling visual content.This frightening movie is plenty of thrills, chills, body-count and glimmer color in lurid pastel with phenomenal results. This is a classic slasher where the intrigue,tension, suspense appear threatening and lurking in every room, corridors and luxurious interior and exterior.This genuinely mysterious story is well photographed by Manuel Rojas with magenta shades of ochre ,translucently pale turquoises and deep orange-red .
The movie belongs to Italian Giallo genre that was invented by Mario Bava along with Riccardo Freda(Secret of Dr. Hitchcock) , they are the fundamental creators . These Giallo movies are characterized by overblown use of color with shining red blood, usual zooms, and utilization of images-shock . Later appears Dario Argento(Deep red, Suspira,Inferno), another essential creator of classic Latin terror films. Tonino Valeri's so-so direction is well crafted, here he's less cynical and humorous and more inclined toward violence and lots of killings . Colorful and evocative cinematography by Manuel Rojas . Very good musical score by the classic Ennio Morricone. The picture is well directed by Tonio Valeri , an expert on Western as proved in ¨The hired gun ¨ , ¨My name is nobody ¨ with Fonda and Terence Hill , ¨The price of power ¨ with Giuliano Gemma and Van Heflin , ¨The day of anger ¨with Lee van Cleef and ¨ Taste of Killing¨ with Craig Hill and George Martin . Rating: Good, this is one more imaginative slasher pictures in which the camera stalks in sinister style throughout a story with magnificent visual skills.
