Dominic Savage’s new two-part film, part of BBC Two’s renewed commitment to intelligent and challenging drama (we shall see; fewer biopics please), comes billed as a look at modern teenage life, although it seemed more drawn to long silences - or the sound of the wind in the trees - and the seemingly desolate land and seascapes of the Lincolnshire coast. Your eyes kept being drawn to the edge of the screen, away from the young protagonists, Lindsey and Robert, which I suppose was meant to lend Dive a fatalistic edge, or a sense of universality.