Movies like Guinea Pig: Mermaid in the Manhole
Same DNA — director, keywords, mood, era. Ranked by closeness, with a decade spread.
⭐ Pick one — directed bridges
One curated follow-up rather than scrolling a grid:
Guinea Pig Part 2: Flower of Flesh and Blood
1985 · ★ 4.6
director · country · mood 
Wife to Be Sacrificed
1974 · ★ 5.2
genres · country · mood · score 
Tomie: Another Face
1999 · ★ 5.1
genres · country · mood · score 
Inugami
2001 · ★ 5.1
genres · country · mood · score 
Flower & Snake 3
2010 · ★ 6.0
genres · country · mood 
Horrors of Malformed Men
1969 · ★ 5.6
country · mood · score 
XX: Beautiful Prey
1996 · ★ 5.9
genres · country · mood · score 
Call Me Tonight
1986 · ★ 4.3
genres · decade · country · mood