What song is this and who sings it, according to the description of the video?

- There's a house that it dark and has really weird rooms.
- There's a ballerina (I think) well anyways there are these two
little kids, one's a girl and one's a boy, and the boy gets pulled
away by an adult.
- From what I remember, I think it's a screamo song sort of?

I know this is really vague but searching "screamo house offical
video" on Youtube obviously isn't helping me out at all. And it's
killing me! It's on the tip of my tongue, but I can't quite remember.
Thanks for your help:)