Thelma, a shy young student, has just left her religious family in a small town on the west coast of Norway to study at a university in Oslo. While at the library one day, she experiences a violent, unexpected seizure. Soon after, she finds herself intensely drawn toward Anja, a beautiful young student who reciprocates Thelma’s powerful attraction. As the semester continues, Thelma becomes increasingly overwhelmed by her intense feelings for Anja while at the same time experiencing even more extreme seizures. As it becomes clearer that the seizures are a symptom of inexplicable, often dangerous, supernatural abilities, Thelma is confronted with tragic secrets of her past, and the terrifying implications of her powers.