He confronted and said it again, sir believe me no one is living on 3rd floor.Why would I lie to you,I'm having all the keys with me all time.I stood silent for few secs and then calmed down myself and thought of the possibilities that could had happened at 3rd floor,I decided to spend some more time with secretary to get some info,I grab 2 beers from my flat and came back to his house,as I lived alone so no body bothered where would I'm going in the night.Now we both were drinking and talking,I asked very casually about the history of that building specially 3rd floor,now he started moving his cold freezed tountge,he informed me that in days of possession of building a small family came to live in F3 on 3rd floor, everything was normal till the first winter came,that weird smell started coming unknowingly on 3rd floor,At that time only 3 families were living...