Horror movie but only remember the twist at the end

My brother is an avid horror movie fan and has seen so many that we forget which movie this is. All we remember is in the end of the movie, the daughter (we believe) is in an insane asylum and we think she was trapped with whatever the being was in the film. The actual plot of the movie is hard to remember, but we think the “being” may have possessed her mother first before it possessed her, however we may be confused with lights out. And if it helps, my brother is beyond convinced the kid in the insane asylum is ginger, and it was between 2000-2019