Horror in my house

This is happening in my boyfriend's house, and since we've been living together, in my house too.

Lesha's parents bought the apartment before he was born, and the kitchen hasn't been renovated yet, despite more than twenty years having passed. The reason for this is that a "domovoi" (a brownie) lives there, although I'm more inclined to believe it's a poltergeist.

As soon as I try to even repaint the pipes or re-wallpaper, the house erupts into unimaginable horror: water pours down the walls, even though the pipes aren't leaking. The whole family wakes up at night to the sound of broken glass or walls being torn apart, but there's no shards or dust anywhere.

Lesha's mother says that at first it seemed like "innocent pranks"—the brownie braided Lesha's hair as a child and hid his toys. Later, it all took on more terrifying proportions.

 When I started staying overnight with their family, I was often awakened by a voice that sounded like it was right next to my ear, but no one else heard it. It eventually got used to me and stopped bothering me.

And recently, we made a terrible mistake. I read that some entities can be captured with a regular camera. I genuinely thought it was a hoax, a joke, and I convinced my boyfriend to give it a try. Since it mostly lives in the kitchen, we went there, and I just started taking pictures of whatever I could find: cabinets, the stove, the ceiling, the pipes...

Lesha wouldn't let me look at the pictures for a long time, but when I finally convinced him, I saw a distorted, reddish face against the white background of the pipe—like a photographic defect. But I'm sure it's living right next to us, and I'm just terrified, like a human being.