Harley loves Ilya. He gives her life purpose, sets her passion ablaze. So when he asks her to prove her love by slitting her wrists, she obliges with only mild hesitation, perhaps because of her other all-consuming love: heroin.

In "Heaven Knows What", by celebrated filmmakers Josh and Benny Safdie ("Lenny Cooke", "Daddy Long Legs"), Arielle Holmes is Harley in her searing film debut, based on her real-life story of l'amour fou, heroin addiction, and scraping by on the streets of New York City.