100 word mystery

In 100 words write something that is creepy and mysterious. I do believe I managed to meet this challenge as I've kinda creeped myself out.

I had just walked in the door when I heard a beep, at first I thought I was imagining it then I heard it again. Following the noise has led me into my bedroom where a watch sits in the middle of the floor beeping away.

“That’s odd” I think as I lean over to pick it up I don’t recognize it how in the world did it come to be sitting on my bedroom floor? Standing up I hear a rustle and freeze suddenly very aware that I live alone and just found a man's watch on my floor.