★ 4.4 Film
Woman in a Box: Virgin Sacrifice
1985
Same creator (Masaru Konuma); both explore softcore and erotic movie
★ 4.5 Film
Woman in a Box 2
1988
Same creator (Masaru Konuma); both explore softcore and erotic movie
★ 4.8 Film
Henry: Portrait of a Serial Killer, Part 2
1996
Both explore serial killer; both crime and thriller
★ 5.7 Film
The First Power
1990
Both explore serial killer; both crime and thriller
★ 5.6 Film
D-Tox
2002
Both explore serial killer; both crime and thriller
★ 5.0 Film
Relentless IV: Ashes to Ashes
1994
Both explore serial killer; both thriller and horror