Instead of overdosing, Lucy’s brain activity begins to accelerate rapidly toward 100%. As her percentage of brain use climbs, she develops extraordinary abilities:

The story follows Lucy (Scarlett Johansson), an American student in who is tricked into working as a drug mule for a South Korean drug lord, Mr. Jang (Choi Min-sik). A synthetic drug called CPH4 is surgically implanted in her abdomen to be smuggled into Europe. When her captors assault her, the bag ruptures, leaking a massive dose of the drug into her system.

Lucy (2014) is a high-concept science fiction action thriller that explores the legendary, though scientifically debunked, myth that humans only use . Directed by Luc Besson , the film blends gritty crime drama with philosophical sci-fi and large-scale action. Plot Overview