For the past half-century, Adrienne Kennedy has carved out a unique niche for herself in the American avant-garde. Her one-act plays, such as Funnyhouse of a Negro (1964), A Rat’s Mass (1966) and Ohio State Murders (1992), are dense with allusions to pop culture, especially the movies, and fascinated with European royalty. Though riffing on Shakespeare and Greek tragedy, they are often semi-autobiographical, animated by Kennedy’s experiences as a black woman in America but shaded by her time abroad in Ghana and London. Elliptical and surreal, they cut right to divisions and hypocrisies at the heart of American society. He Brought Her Heart Back in a Box, Kennedy’s first new play in a decade, may be her most narratively straightforward work yet, but even at a svelte 45 minutes it is no easily digestible scrap.