Headless Ghost

Running 1h 19m and made in Thailand, Headless Ghost (2005) is a Horror film in the 123movies catalog. The cast includes Jaran Wongsujjaa and Kwantuch Na Takuatoong; Sutthakorn Santithawat directs. 1 vote put it at 4/10. Pakdee is a reporter who happens to witness a car accident that lead to the death of the driver by decapitation. He starts acting funny and is hung up on deaths of people whose heads were cut off. His boss starts to complain about his work but it soon improves when he begins covering a spate of murders by decapitation in Bangkok and he even gets an award for his reporting. But he is still acting strange. What's going on? Is he haunted by the ghost from the car accident? Does he know more than he says about these deaths?