An innovative and rather intense look inside the mind of a 16-year-old biracial girl (Helena Howard), who comes in and out of focus, both literally and figuratively. Actually, more interesting is her relationships with, or maybe it is just her views of, two white mother figures, played adroitly by Molly Parker and Miranda July, whose vulnerability builds as Madeline’s feline ferocity strengthens. Then there is the bizarre improvisational theater troupe, which seems absurd but maybe is what they do in Brooklyn.