StudentJanejobsasanassistantfortheanimalresearcherPhillipinalonesomeoldhouse.TheylivealoneexceptforthechimpanzeesandbutlerLink:a45yearsoldveryintelligentorangutan.PhillipwantstoputLinktodeath.Howeverbeforehecandothishe'svanishedtracelesslyonemorning.LinkstartsbehavingmoreandmoreaggressiveandprohibitsJanefromusingthephoneorreachingthenextvillage.Whenshepunisheshimbylockinghimout,hebecomesviolent.