To end their relationship Borak and Karissa must find a bubble of air buried among twenty-four types of mud. On their descent into subterranean London they are followed by a film crew and its odious Director, documenting their quest.

As they chance upon bones, bricks and a talking mole, they must restrain themselves from throttling each other, and falling in love all over again.

Chris McCabe's macabre version of Orpheus and Eurydice brings its themes into the present day : a contemporary re-tuning of the mythic 'Father of Song'.