The story happened in the old Broadway Centrum.
[Taken from Internet:]
There was a couple inside a car when they noticed a guy walking around them. Of course the girl, in fright, told her boyfriend to go out and confront the person. After hours later, the girl was freaked out when the head of her boyfriend just abruptly appear on the window. Next day, she was found by the police insane. Legend has it that the guy walking around them hunts couples doing something inside the cars.
[Taken from http://underbonesphilippines.com]
The story goes that a couple went out on a date one night somewhere along New Manila. Then their car breaks down; good thing they were able to steer it to the broadway centrum parking lot. The boyfriend gets out of the vehicle and tries to fix the problem, but fails. So he tells the girlfriend to stay in the car, close the windows, and lock the doors while he's looking for help.
An hour later, the girl was getting anxious waiting for her boyfriend to arrive when she notices a strange man watching from the shadows. this man approaches the car and starts banging on the windows and trying to force open the doors. Terrified, the girl honks the car horn to get attention and scare the man off. He stopped and hurriedly left, only to return a few minutes later. then he circled the car, deliberately, holding something in his hand, which he raises to the window.
To her absolute horror, the girl realizes it was her boyfriend's decapitated head! That's not all: she was even more horrified to see what the man lifts up in his other hand: the boyfriend's car keys.
Allegedly the poor girl was so traumatized by the experience that she lost her mind.