Adam tells the story of his two-planet home world, unique with “dual gravity”, allowing the two planets to orbit each other in extremely close proximity. Three immutable laws of gravity exist for this two-planet system:All matter is only pulled by the gravity of the world that it comes from.An object’s weight can be offset using matter from the opposite world (inverse matter).After a few hours of contact, matter in contact with inverse matter burns.Upside Down 2012.
The two societies are segregated by law. While the upper world (Up Top) is rich and prosperous, the lower (Down Below) is poor. Up Top buys cheap oil from Down Below and sells electricity back to Down Below at higher prices. Contact of Down Below people with Up Top ones is strictly forbidden, punishable by incarceration or death. People from Up Top regularly go Down Below to experience novelties like dancing on ceilings. The only official physical connection linking the two worlds is “TransWorld” company headquarters.
Adam lives in an orphanage in Down, with his only living relative being his great-aunt, who he visits every week. Her secret flying pancakes recipe uses pollen from pink bees which gather pollen from both worlds. The recipe has passed through generations and will be inherited by Adam.
As a child, Adam secretly climbs a mountain that reaches very close to Up. There he meets Eden, a girl from Up and they develop a relationship. Meeting on the mountains, Adam uses a rope to pull Eden towards Down, and they head to the woods for a stroll. Discovered, Adam frantically releases Eden back to her world, catching a bullet in his arm and dropping her. Helpless, he watches Eden lying motionless on the ground as blood oozes from her head. When he returns home, his aunt Becky is arrested and her home burned.
Ten years later, Adam is developing an anti-gravity product which allows matter to respond to both gravitational fields at once, a cosmetic product for face-lifts. When he sees Eden on TV, he realises she is alive and working at TransWorld. Completing his formula and hired by TransWorld to develop the cream, Adam’s plan is to find Eden in TransWorld. He becomes friends with Bob, a TransWorld employee from Up. Adam helps him obtain rare stamps from Down and Bob helps him contact Eden.