In a strange little home built into the branches of a grove of trees, live three robots?fatherly inventor android Giovanni Lawson, a pleasantly sadistic nurse machine, and a small vacuum desperate for love and attention. Victor Lawson, a human, lives there too. Theyre a family, hidden and safe. The day Vic salvages and repairs an unfamiliar android labeled HAP, he learns of a shared dark past between Hap and Gioa past spent hunting humans.