Peter Diggs first meets Amaryllis at a bus stop next to a sign reading Balsamic, though there is nothing very vinegary about the place. When the bus arrives it towers above them - a gigantic pink, yellow and orange rice-paper bus, candlelit from within like a Japanese lantern. The next time he sees her, he's in the Science Museum fascinated by the convoluted construction of Klein bottles. The first meeting is a dream, the second a reality. 'Trust me, I'm a weirdo,' says Amaryllis, as she and Peter embark on a journey which leaves none of us quiet sure where the nights end and the days begin.