Devil Species

The plot centers around Dr. Diana and her father, Dr. Rung, who are working on a groundbreaking snake-bite serum known as X5N-1. Invited to receive an award from the World Health Organization in Switzerland, their journey takes a dark turn when a lab accident leads to a horrific transformation.

Dr. Rung is bitten by a deadly snake during the experiment, resulting in a monstrous change that turns him into a creature with a human body and a snake's head. This transformation unleashes chaos as he eliminates his fellow scientists in the research facility. The film combines elements of horror and thriller, making it appealing to fans of both genres looking for something unique from the early 2000s.