Social scientists tell us that relocating and setting up a new home is one of life’s big stresses. So the pressure is really on when a young, upwardly mobile black man moves back to his old Brooklyn neighborhood, bringing his white girlfriend with him. Add a little more tension when the man’s former schoolmate, fresh out of rehab, arrives to crash on the couch for a while. It can push a relationship to the breaking point.

Love, fear and privilege are topics explored in playwright Tracey Scott Wilson’s new Off Broadway play “Buzzer,” directed by Anne Kauffman and now running at the Public Theater. New York Times theater critic Charles Isherwood shares his review.