Prodigy follows Dr. Fonda, a psychologist with a mysterious new patient. After being searched and issued warnings, he is taken to a cell where he finds Ellie, a young girl strapped in a straitjacket. Ellie immediately begins dissecting Fonda, revealing her genius-level intellect. Fonda holds fast, only faltering when Ellie claims to have killed her own mother. The team observing this interaction suggest Ellie is more dangerous than Fonda knows. She possesses “gifts” they wish to analyze — a process which will result in Ellie’s death. With the execution scheduled for the next day, Fonda must alter his strategy. He engages Ellie in a battle of wits, which results in Ellie's telekinetic “gifts” revealing themselves. Objects hover, furniture topples, the foundation of the building quakes, but Fonda continues chipping away at Ellie’s tough facade. His methods begin to win over the experts, but he will need drastic results to prove the monster they see is actually a child worth saving.