Brand New 4K Remaster From The Original Techniscope Negative Presented In 4K Ultra High Definition Blu-ray (2160p) In 2.35:1 Aspect Ratio
Presented In Dolby Vision High Dynamic Range (HDR10 Compatible)
English 24 Bit LPCM 2.0 Dual Mono With Optional SDH
Italian 24 Bit LPCM 2.0 Dual Mono With Newly Translated English Subtitles
Audio Commentary By Troy Howarth, Nathaniel Thompson And Eugenio Ercolani
Audio Commentary By Critics Kim Newman And David Flint
Audio Commentary With The Hysteria Continues
"An Eye For Murder" - An Interview With Martine Brochard
"Genre Maestro" - An Interview With Umberto Lenzi
"The Wandering Eye[Ball]" - A Visual Essay By Mike Foster
Locations Featurette
English "The Secret Killer" Title Sequence
English End Credits
Trailer Reel
Reversible Sleeve Featuring New Art By Graham Humphreys And Original Italian Poster