Tambellini here focuses on contemporary life in a black community. The extra, the “X” of Black Plus X, is a filmic device by which a black person is instantaneously turned white by the mere projection of the negative image. The time is summer, and the place is an oceanside amusement park where black children are playing in the surf and enjoying the rides, quite oblivious to Tambellini’s tongue-in-cheek “solution” to the race problem.