Write a suspenseful scene where a character is being followed late at night through a dark alleyway

Write a suspenseful scene where a character is being followed late at night through a dark alleyway. The character has a feeling of unease and paranoia as their footsteps echo off the walls and they hear the sound of someone or something following closely behind them. Just as they reach the end of the alley, they turn around to confront their stalker, only to find nothing there. Just as they start to relax, a hand reaches out from the shadows and grabs their shoulder, sending them into a panic.