Two androids are serving their sentence on a godforsaken planet. They were once human, but now all they have left are the memories of life in a human body. True, they also have something else - NOMAD, a device that allows them to travel between worlds, accidentally fell into their hands. The red corridor represents sinister and dangerous worlds, the orange corridor represents absurd and strange worlds. Green - worlds like ours. Travelers can choose any, but the most important thing is not to violate any prohibitions!