Horror Movie Scene – Can’t Remeber the Name

Hi, this is driving me crazy. I can see a scene in my mind but I can’t remember the movie title. I’ve searched endless horror movie titles and watched trailers on Youtube and I’m still stumped. I need your help.
So I believe this scene was in the trailer of the movie because I remember playing it over and over.
A teen girl is sitting on her bed and talking to a little girl (maybe her sister) and she either hears or see’s the little girl somewhere else realizing that the little girl she’s been talking to isn’t the right one. Super creepy scene.
It’s a memorable scene but I can’t remember the title or anything else. Thanks!