The film Basket Case (1982) follows the life of twin brothers: the seemingly physically normal and able-bodied Duane Bradley and the extremely deformed Belial Bradley who has a penchant for murder. Born conjoined, their father refused to accept both children and ultimately went against his sons’ wishes and had them surgically separated. Throughout the film, both before and after the surgery, Belial is called an “it,” “monster,” and “not-human,” while his brother gets pity from others because his physical appearance makes him more “passable” in normal society. Family members and doctors believe the only way for the twins (or at least Duane) to exist would be if their appearance more closely resembled societally acceptable standards. So, in attempt to save Duane, the twins became disjoined and thus begins the murderous revenge of Belial. Within horror films and TV shows, the gaze focused on conjoined twins views the siblings as monstrous and deformed with the plot frequently seeking to separate the twins. However, from the twins’ perspective, being disjoined is what makes the pair monstrous. Using Basket Case as the prime example for the paper, I will also touch on the X-files episode “Humbug” and The Simpson’s “Treehouse of Horror VII” segment “The Thing and I” to analyse the use of disjoined conjoined twins. Within these examples the conjoined twins present with one being more monstrous then the other, and therefore to reach the acceptable level of normalcy, the less desirable twin must be removed. However, the evil characteristics appear only when the twins become forced into normalcy. The paper will pull from monster theory for a horror perspective but will also discuss the concept of enfreakment to include disability studies. I aim to explore how the forced decision for “normalcy” in horror robs the conjoined twins of their true identity and pushes them to more deadly behaviour.