What happens, when a tale of murder start? The movie Saak meng tung wa (Fairy Tale Killer) is all about that. This is story of a city, where suddenly the things start changing. The situation goes out of control, when this chain does not stop. One after one murder was taking place and it was becoming challenge for the police of that place. There was no specific reason for these killings. The people of that city were in threatening. A killer has hijacked the entire city. Will the police be able to catch the serial killer?