Harley is discarded by her love Ilya and turns to Mike. All three are young heroin addicts, existing in a state of continual transit among the lost, forgotten, and ignored of New York City. Heaven Knows What is concerned less with the inevitable rut of hustling and scoring that comprise an addict’s life and more with the operatic drama and the strange-yet-recognizable logic of the central trio’s passionate couplings, instantaneous betrayals, and frightening altercations. This more-than-fiction film is an adaptation of an unpublished memoir by recovering addict Arielle Holmes, who inhabits Harley and her recent past in a singular performance that goes well beyond acting. Heaven Knows What is a uncompromising dive into the emotional toll of addiction. (DS)