Interstellar travel to alien worlds is too expensive for Marvin, a college student in need of a good vacation. And so he signs up for what he can afford: a mind swap, in which his consciousness is swapped into the body of an alien life-form. Unfortunately, Marvin finds himself in the body of an interstellar criminal-a body that he has to vacate, fast. But that criminal consciousness has stolen Marvin's earthly body. Now Marvin has to find a body on the black market just to stay alive! Travel with Marvin from world to world, each one crazier than the last, as he keeps finding far-from-ideal bodies in awful situations.