The Detour Road

This real life incident was told to me by my friend at around 1.00am midnight near the library road NIT Trichy, 
The incident took place somewhere in Bihar, the exact location is unknown to me. My friend's grandfather(A Politician) was travelling in a car at night, this was at a time when many did not have the luxury of a car, and there were no proper roads.
To reach home early My friend's grandfather(uncle from here on) asked the driver to take a detour, a road which was not frequented by people at night because of rumours of supernatural activities. He being an educated person did not believe in the rumours and took the logical decision.
After going further for around some 20kms, the driver saw a woman asking for a lift. The driver looked at uncle, uncle ordered him not to stop and continue driving, they passed the woman and continued further, it was after crossing a certain distance, uncle noticed something outside.
The woman's face was clearly visible from the window, and she was literally running at the speed of the car, she turned her head and looked at uncle and told him he should have stopped.
The shock was to much for the uncle and he died of cardiac arrest, the woman spared the driver telling him he was just following orders.

P.S. this story was first told by the driver to my friend's grandmother and was passed on to my friend from there, when he asked his grandmother to tell a good horror story.
Source :Nishit Sangloma,New delhi