Poltergeist in a Rented Apartment After Moving from a Village

Sup anons, the story is a total fucking nightmare, idk you can believe it or not, your call. Anyway I moved to the city from a village, right after the army, found a one-room apartment, basically the cheapest option, and in not the best part of the city, rent 5k, and utilities there a grand. The best option for a start, as I thought, and I didn't have many options anyway, after the army and all. About two weeks later I got a job at a factory. Seemed like a normal bachelor life, nothing strange. But after another month, I literally started noticing something strange, I kept waking up at 3 a.m. at night, like on an alarm clock, with the feeling that someone was watching. I said fuck it and went back to sleep. One time I woke up around 4 because in the bathroom a glass with toothpaste and brushes crashed off the shelf above the sink, I still can't understand how, the shelf has sides at least half a centimeter, I didn't have a cat at that time, then the icon started falling constantly in the kitchen, that's also impossible, it hung on a hook, the lock somehow got blocked from the inside when I left the house. I called twice to have it broken open. Recently I found out from the neighbors that before this apartment was rented out, an old granny lived here, really old, and the same granny who told me this talked to her. She said she doesn't want anyone living in her apartment, she won't allow it. So she's not allowing it, she tells me. I never heard anything like that from the landlady, I didn't even know someone died here and stuff. The landlady, strangely, never came by. Doesn't call, I just throw the money and that's it. 3 months ago my girl moved in with me, and since I'm at work for days at a time, she's scared, we got a cat. Seemed like she calmed down until today. Also what's strange is the apartment has a lot of paintings of this dead granny as I understood, I took them all down, my girl threw out all the dishes, because they were chipped and there was a lot of dishes, I threw out at least 4 bags. Spoons, mugs, apparently they saw her off at home. Back to today, my girl sends a photo where WE are sleeping, fucking literally sleeping. Me, Her and the cat. And at that time someone photographed us, fuck, the photo was taken yesterday, and she noticed it today. I'm in shock, well fuck nobody could have photographed it. I'll attach the photo so you don't think I'm bullshitting. I seriously don't know what to do, one thought is to get the fuck out of this place, because even my girl, from the first day, sleeps very badly at night, and when I go on night shift she only falls asleep when I come back from it.