It is the not-too-distant future. The space colony Lagrangia, on the Moon’s orbit, is an idyllic utopia of parks, mountains, streams, and blue skies. Lulled by its beauty, citizens can sometimes forget that the streams are recycled water, and the blue skies are titanium strips bound together. But there are a few who can never forget. These are the victims of wide syndrome – a terrifying form of contagious, claustrophobic madness that can strike anyone – at any time…on Lagrange Five!