Compared is the cut US tape by Artisan (R-Rated) and the uncut DVD by Anolis (unrated).

49 seconds are missing in 10 scenes.

For receiving a R rating the well made and thrilling movie by Dario Argento had to be cut in almost all scenes containing gore. Beside the R-Rated version, an unrated version by Artisan was also released in the USA.

15 Min
When Angela is grabbing for the brake, two of her fingers get chopped off and fall on the floor. She screams because of pain and holds her hurt hand from which a lot of blood is spurting around. The killer tries to stab her again, but she manages to turn away.
8 Sec

20 Min
The killer stabs the knife into Amanda's neck. He pull sit out again and one can see blood coming out of her wound.
5 Sec

41 Min
The flute is rammed into Giacomo's mothers throat. There are some additional takes of Giacomo as small child who has to see the whole act.
10 Sec

58 Min
Beppe is knifed by a pen.
4 Sec

58 Min
Again a stab into his head.
1 Sek

58 Min
Again some stabs. The last one is done in a close-up.
5 Sek

69 Min
The killer brutally pushes the woman's face against the wall. She loses some teeth and her bloody mouth can be seen in two takes.
9 Sec

80 Min
The ballerina's head rolls over the floor.
5 Sec

113 Min
Leone receives a bloody headhsot.
1 Sec

113 Min
Leone falls down with his shot face.
1 Sec