Two cutting-edge scientists give 'delivery' to a Neanderthal—the primary to stroll the earth for some 35,000 years—with a purpose to try to reply these questions. Half 'regular' youngster, half science experiment, William’s 'dad and mom' wrestle with one of the simplest ways to lift him. As William grows towards maturity, he's educated within the human experiences of affection and intimacy. However his primitive impulses start to emerge the extra he tries to adapt to human expectations, resulting in tragic penalties for him and his family members.