Her dark materials. I’m sure that the parents of Anya Reiss are bursting with pride that their daughter has written an acclaimed debut play, Spur of the Moment, at the unheard-of age of seventeen. But aren’t they horrified, too? As staged by the adventurous Royal Court Theatre, whose young writers program nurtured Reiss, the play is Ozzie and Harriet Burn in Hell. Their precocious offspring wasn’t just listening at doors to what the adults were squabbling about. She was prying into their psyches with sharpened tweezers, as coldly objective as Nabokov with his butterflies skewered and pinned on a board. Mums and dads across the land must be applying double insulation to their bedrooms.