Lynn, a straight-A secondary school student living with her father, is accepted into a prestigious school, earning a scholarship for her academic achievements. There, she befriends the good-natured but academically challenged Grace. Lynn begins helping Grace cheat in exams after finding out that a teacher has been giving out exam answers in private tutoring sessions. She is then approached by Grace’s boyfriend Pat, a spoiled rich kid who offers her payment in exchange for also helping him and his friends. Although at first reluctant, Lynn agrees when she finds out that the school took payments of “tea money” from her father, who earns a modest income as a teacher. She devises a system of hand signals, based on certain piano pieces, and uses them to send answers during exams. Her base of clients eventually grows; however, her cheating is inadvertently revealed by Bank, another scholarship student. She is reprimanded by her father and the school, which suspends her scholarship, as well as her chance to apply for an international scholarship at the university level.
Bad Genius, known in Thai as Chalard Games Goeng, a 2017 Thai heist thriller film produced by Jor Kwang Films and released by GDH 559. It was directed by Nattawut Poonpiriya, and stars Chutimon Chuengcharoensukying in her acting debut as Lynn. The film was released on 3 May 2017 to critical acclaim, placing first at the Thai box office for two weeks and earning over 100 million baht, making it the highest-grossing Thai film of 2017 so far. The film was selected to open the 16th New York Asian Film Festival, where the film won the Best Feature award and lead actress Chutimon was named Rising Star Asia.