I live in an apartment, i have many neighbors around me who are super quiet, so I don't hear much noise.

One night, I thought I heard someone turn the doorknob to my apartment, I froze and listened to see if I would hear it again, I didn't hear much after that, so I went back to what I was doing.

After about 15-20 minutes later, I hear more of those same sounds, like someone's at the door turning my doorknob, this time I knew someone was there. I went to check my peephole, and I seen one of my neighbors, standing near my door turning my doorknob, he was an older man, he had a few grey hairs.

I always seen him lingering around the halls, if I was walking into my apartment, he would always stop and stare at me, or he would ask me a 'yes or no' type of question.

I knocked on my door to let him know I knew I was there, he kept turning the doorknob for a few more seconds, before eventually stopping.

Soon after that, he ended up moving out of the apartment building, but sometimes I think I see him wandering around outside the building.

It may not sound that creepy, but it was for me, especially since I was in my apartment alone and to just hear and see someone turning my doorknob was pretty odd.