Mum and Dad, along with their'adopted' children, Birdie &amp. Elbie, just work on the airport. The family live off anything they scavenge from offices cargo holds and hotels - including a more steady flow of workers who populate the soul less hub of the airport. When Lena, a young office cleaner, has been befriended by Birdie, she gets drawn into a world of torture, murder and perversity.