Raw

Lifelong vegetarian Justine arrives at a veterinary school to start college. During the first night, she meets her gay roommate Adrien and is forced to partake in a hazing ritual, welcoming the new students. They are brought to a party, where Justine feels uncomfortable and meets her sister Alexia, who shows Justine old class photos, including one with their parents. The next morning, the new class is splattered with blood and are told to eat raw rabbit kidney. Justine refuses, saying she is a vegetarian but Alexia forces her to eat it, thus she reluctantly consumes the kidney. Later that night, Justine discovers a strong, itchy rash all over her body. She goes to the doctor the next day, who diagnoses her with food poisoning and gives her a cream for the rash. Read more on Wikipedia.