Swamp of the Lost Monster
Movie| Title | El pantano de las ánimas |
| User score | 4.8 |
| Release date | Sep 5, 1957 |
| Genre | Western, Horror, Mystery |
| Director | Rafael Baledón |
| Production country | Mexico |
| Production companies | Alameda Films |
| Run time | 80 min. |
A disappearing body leads a detective and his sidekick into an encounter with a gill man.
