What song is this. I've been trying to find it for so long.I just remember the mv. It's like alternative rock . Creepy house and girl w red curly hair and she's walking w ballerina stilettos. Anyone?

The song you're describing sounds like "The Only Exception" by Paramore. The music video features a girl with red curly hair and has a distinctly eerie atmosphere, with scenes set in a creepy house. The alternative rock vibe and the imagery you mentioned align well with this song. If this isn't the right track, you might also consider checking out other alternative rock bands with similar themes.