The Peeping Tom is a myth in Grand Theft Auto IV.
Description[]
If the player walks around the neighborhood of Beachgate and turns to the northeast, near one of the homes, there is a man peeping through the window of a house. Critics of the myth claim that it is just a glitched pedestrian. There are not many claims on the intentions of the man.
Some claim that he is just a regular person stalking someone else, but a fringe group believe it is related to a myth. The Peeping Tom is almost always male, is not referred to by name, and his intentions are not currently known.
Upon closer inspection it can be seen that he is wiping the window.
The "Peeping tom" is actually wiping the window
The peeping tom on the house