Isika Tangsrichanon

A group of university students go in search of a missing friend in the jungle where they meet a giant snake. With no way out, they must face the beast and fight for their lives.

A group of geologists is attacked by gecko fiends that possess them, transforming them into zombies. Kwan travels there to give lectures and is possessed by the evil gecko spirit, However, her skeptical boyfriend doctor doesn't understand what's happening to her.