Not much of a focus in the line of images here. In fact, the band were pressed into writing a plausible single, cause although they had done a killer of an album ('In Rock') there was nothing that would catch instant airplay. So they went to the studio in a huff, Ritchie and Roger came up with the backing track - and then (as Roger Glover tells the story) the band would try to come up with the kind of banal lyrics that would befit the single - and rhyme with 'black night'.. 'I don't feel too bright' somebody muttered - right, in it goes!