基因工程科学家艾尔莎（萨拉·波莉 饰）正进行一项秘密实验，即将人类与动物的基因混合杂交，与她并肩作战的，还有同事克里夫（阿德里安·布洛迪 饰），实验如果取得成功，将有助于处理所有基因型疾病，阿尔兹海默症、帕金森症、癌症等，但官方不并支持，认为道德争议将会彻底失控，遭到社会舆论反噬。于是两人将实验转入秘密进行中，最终培育出了雌雄同体、面孔相似人类的Dren（德尔菲娜·尚内亚克 饰），克里夫担心杂交之后的物种会对人类构成威胁，意欲将其毁灭；艾尔莎却对Dren的出现表现地满足又惊讶，不同意克里夫的提议，随后开始教授各种行为与常识。Dren天然具备高智商、身体器官各方面指标也都异常优秀，逐渐成长后，艾尔莎和克里夫都遭受了Dren的侵害，最终，两人联手将其毁灭。

Genetic engineering scientist Elsa (Sarah Polley) is conducting a secret experiment that is to mix human and animal genes and combine them with She is fighting side by side with her colleague Cliff (played by Adrian Brody). If the experiment is successful, it will help to deal with all genotype diseases, Alzheimer's disease, Parkinson's disease, cancer, etc. However, the government does not support it, and believes that moral disputes will completely get out of control, and will be backlashed by public opinion. So the two turned the experiment into secret, and finally bred Dren (Delphine Chaneac), a hermaphrodite with a human-like face. Cliff worried that the hybrid species would pose a threat to human beings, and intended to make Dren a human. Its destruction; Elsa was satisfied and surprised by Dren's appearance, disagreed with Cliff's proposal, and then began to teach various behaviors and common sense. Dren naturally has a high IQ, and all aspects of body organs are also excellent. After growing up, Elsa and Cliff both suffered from Dren's abuse, and finally, the two joined forces to destroy it