Ying Narintorn, a special forces officer manages to capture a terrorist. However, the latter will escape him quickly. At the same time, a very powerful laser system recently developed is being tested in the building, but the experiment will turn to disaster, causing a chemical reaction on a snake. Transformed into a real killing machine, the overpowering reptile now haunts the corridors of the complex ...

The spirit of a young girl named Premika resides in a karaoke booth. When it is accidentally switched on, her spirit awakens from death and haunts those who sing terribly.