Monstroid (1980) is a Horror, Science Fiction film that follows a rural Colombian village is attacked by a horrible sea serpent, aroused by industrial pollution of a nearby lake. Based on a real event that took place in June of 1971. Currently, you can watch Monstroid on FlixFling, IndiePix Unlimited Amazon Channel. Streaming availability may vary by country and platform over time. It has a user rating of 3.6 out of 10 from 19 votes. Fans of horror movies may also want to explore similar titles below.