You are what you are, and then you spend an entire life “developing” and becoming yourself in some kind of higher, realized adult sense. But maybe you can get or take help from medical science? An experimental surgeon named Godwin Baxter (Willem Dafoe), also called God (God), would like to see how much the natural limits can be stretched. He mounts a goose head (and a goose neck) on a dachshund body, he combines pig and poultry.
And then chance brings a recently deceased female corpse into his path. The unfortunate young Victoria has thrown herself into the river, and she was also heavily pregnant. God’s idea then is to operate on the unformatted brain of the unborn child in the adult female body to see what happens. Said and done. He names his creation Bella (an incomparable Emma Stone) and hires an assistant (male) to both record her progress and administer a measure of upbringing. Of course, it doesn’t stop until he falls in love with this feisty child woman who quickly discovers her sexuality and who explores it enthusiastically without a trace of culturally conditioned shame in her resurrected body.