"I'm doing the right thing, not feeding myself. It's the only thing I can do, so I will do it. Gloria can somehow have the energy I don't take in, and it will help her stay alive." Twenty years ago, fourteen-year-old Valerie rushed off for lunch with her boyfriend instead of properly putting away a packet of balloons, and her little brother choked to death on his third birthday. In response, Valerie locked down every aspect of her life...