A supernatural phenomenon

Recently, I've been terrified of being home alone. It doesn't matter whether the lights are on or not, whether music is playing on the computer, or whether the TV is on. Fear rolls over me in terrifying waves—sticky, disgusting, to the point of despair, I even want to run away from the apartment. I can't explain logically what exactly causes this dread. I just come home from work, and my heart sinks, my breathing quickens. I walk around the house, looking around, as if I'm afraid of someone. About two years ago, I had almost the same experience—an unreasonable, primal fear. But back then, I attributed it to moving to a new house, stress, and all that. Over time, this feeling passed. But now, living with such terror is simply unbearable—I come to work sleep-deprived, with dark circles under my eyes...

Consequently, after consulting with my parents, I decided to rent out the apartment. And that's when the worst part began. Until the realtor set foot in my house, I hadn't noticed any supernatural phenomena, but now...

Equipment—the computer, TV, radio—starts turning on and off by themselves, and the microwave and air conditioner are acting up. But the worst thing happened one night. I was lying down reading an e-book, when suddenly someone said, "Ksyusha-a-a," right next to my ear. It was said so drawn-out and mournfully, as if it were sung. I looked up and saw a tall man standing right above me, his face pale and bloodless. I bolted out of the room and into the stairwell. I stood there for a long time. Only after I finally calmed down did I go back in, turn on all the lights, and go to bed. I woke up in the morning completely shattered, as if I'd been beaten nonstop all night.

Finally, a married couple wanted to move in, and I have to move out in two days. Last night, history repeated itself. I was reading again, turned to face the wall, and heard my name again. I closed my eyes; turning around was beyond my strength. Fear knocked me out for two hours. When I woke up, the TV was on and all the lights were on, even though I hadn't turned anything on...