Tonya (Margot Robbie) grew up in a broken family and lived with her mother (Allison Janney). Tonya's mother was a cold and arbitrary woman. She saw her potential as a figure skater in Tonya, who was only 3 years old. With this, the little girl was sent to the figure skating team coached by Diane (Julianne Nicholson) and started training. Tonya's entire childhood was almost spent on ice, until one day she met a man named Jeff (Sebastian Stan) at the skating rink, and the two quickly fell in love. Jeff changed Tonya's life, but it also became her disaster. From then on, Tonya had to face, in addition to the increasingly arduous training, there were also punches from Jeff. In a game, Tonya completed three and a half laps of jumping on the ice, becoming the first athlete in the United States to complete this action, and Tonya became famous.