Her major debut as a dramatic actress was in 2004's Ai-Fak, based on the S.E.A. Write Award-winning novel, Kham Phiphaksa (The Judgment), by Chart Korbjitti. She portrayed a mentally ill young woman who is married to a much older man. When her husband dies, her care is entrusted to the man's son, Fak, who is then ostracized by his fellow villagers because they believe he is having sexual relations with his stepmother. In the film, her character displayed an uncontrollable exhibitionist streak.
Tak was at the center of a controversy when nude photos of her, taken on the set of Ai-Fak, appeared on the Thai Internet forum, Pantip.com. Police were able to track the uploader down and the man was arrested. Tak asked that charges against the man be dropped after he issued a public apology, and she said she did so because the man hadn't smuggled the photos from the film set. A complaint was also filed against the film's production company for taking the photos.