This movie is a story about a forest tribe with one dominant male, one old male and the rest are all females. It's a rule of the tribe that the dominant male can only mate with the other females once his wife has given him an heir, which causes friction with the other females as they need to repopulate their tribe with offsprings. A male nature photographer from the city happens to find his way to the tribe. He is virile and could be the answer to the tribe's problem, but as with lion prides, the alpha male of the group won't accept him so willingly, especially if the intruder's eyes are set on his own wife.
After a few times of near-kisses and sneaking around the tribe leader, the tribe leader's wife and the nature photographer finally kiss at 1:09:05 and have sex in the lake a few seconds after. But the tribe leader actually secretly allowed it. He is infertile, and his plan is to kill the photographer after the young guy is able to impregnate his wife and claim the child as his own.