She Has a Name (2016) on Netflix

Plot summary

An abandoned water truck found in the Thai countryside held more than 100 trafficked migrants; about 50 died and others disappeared. Jason, an American lawyer, works the case from Bangkok, where he poses as a client at The Pearl, a destination for sex tourists, to gather evidence against a pimp. He believes a young woman held there, known only as Number 18, could be the witness his case needs, and he sets out to win her trust. His boss, Marta, works alongside him as pressure builds from power brokers in Washington who are finalizing an Asian trade deal. Jason is also a father, with young daughters far away in the United States.