Comparison between the R-Rated VHS released by Video Treasures and the unrated version, taken from the uncut UK-DVD released by MGM (BBFC 18).

7 cuts = 1 minute and 6.5 seconds
1 alternative scene = no difference in time

In this movie, Anthony Perkins (Psycho) portrays a character which is a mixture of Dr. Jekyll and Mr. Hyde as well as Jack the Ripper. In the USA, the movie was released both as an R-Rated and an unrated version. Even though the DVD is also rated R, it still includes the uncut version. Thus, the cuts are only included on the VHS version.

36 min
Another shot of the prostitute being pleasured by a stick which Jekyll rubs between her legs. Jekyll looks at the voyeur standing at his window and then tells the prostitute that he apparently seems to enjoy the show as well.
6 sec

36 min
Jekyll continues to pleasure the prostitute with the stick while asking her if she likes it. She says she does. After that he repeatedly asks her if she will like him even more.
27 sec

36 min
Again you see the prostitute being pleasured by the stick. The voyeur watches it from behind his curtains.
9 sec

36 min
The voyeur is standing at the window a little longer.
3.5 sec

37 min
Jekyll cuts the prostitute's throat (no blood is visible).
3 sec

37 min
After Underwood arrived on the roof, you don't see Jekyll cutting the prostitute's chest. In the R-Rated version you instead see a cut to a bloodbesmeared dove.
No difference in time.

R-Rated	Unrated

37 min
When Underwood spots the corpse, 3 shots of the dead body were cut out.
4 sec

70 min
Jekyll attacks the prostitute a little longer with the scalpel and kills her. Subsequently, the dead body falls to the ground. Jekyll walks off screen.
14 sec