Who are you?

It was a Friday evening. She was on her way home, a bit late though for her obvious reasons. But still she would be on time, as that was the time people at her home normally expected her back. Intelligent, or more appropriately, a clever girl. The adjective "clever" has a negative connotation that gives a clear indication about the intentions of the person concerned though. As she took a turn into the bylane leading to the bus stand, she heard the footsteps behind her which dwindled to inaudible sounds within five minutes. May be someone random was walking down the lane who took the left turn that she crossed by. But she heard them again that forced her to glance over her shoulders every four steps. Her heartbeat raised to a level where it could even burst out! The increasing sounds clearly indicated that the person was coming closer and closer to her. She finally gathered the left over courage to confront with the follower and turned around. OOPS! Power cut and nothing was visible clearly. She could only see a hazy image of a tall, well-built guy with a hat and an overcoat, similar to suspicious characters in her favourite Sherlock Holmes series. 

She: What are you up to? Why the hell are you following me?

Guy: Why do you think I am following you?

She: (Scared but putting up a brave front) Do not ask questions instead of answering me. It is clear that you have been following me past last three blocks. What do you want?

Guy: So when you have realized it, let me tell you I have been always following you.

She: (Shocked) What? Since when?

Guy: Since you have started cheating on your husband by having an affair with your boss and that too just for getting a bloody promotion at office. Rather, since you have started cheating on both on them. No...I am sorry, even before that.

She: Okay! I see! So Raj has finally hired a spy. Wow...How much money is he giving to you for this shameful act?

Guy: I don't need anybody to hire me, lady. It's not your husband. He is not even aware of your shameful act yet. And didn't you hear the "even before that" phrase?

She: What do you mean?

Guy: I have been following since you have been taking money from your poor mother for false reasons only to have fun with your friends; and she was working as a maid to give you the basic educational needs.

She: How do you know all these things? What do you mean by that you are not hired by anyone? Is this your way to blackmail random people?

Guy: I know you might be thinking I am a part of some secret gang of blackmailers but I am not. 

She: Then who are you?

Guy: I am KARMA! I saw you doing everything bad and good. But remember "what goes around, comes around." 

The power came back and there was nobody. She was scared till death and couldn't move an inch for almost five minutes.