Theptida rong ram (1974)

Malee is a farm girl from Northern Thailand who decides to sneak away to Bangkok with her boyfriend, Chate, but shortly after arriving, Chate disappears and Malee finds herself held captive in a "love hotel". To pay for the room, she is forced to sleep with men. At first, she is horrified by what she must do, but after a time, she becomes resigned and accepts her situation as fate.
With her debt paid, she starts to earn money working as a prostitute, giving her the ability to buy new clothes and send money home to her father, telling him she is working as a seamstress. As Malee is taking her clothes off, her father is putting new windows on his house.
Malee gains a reputation in her community as a person to be relied upon to help break new girls in. One particularly hard case refuses to be accepting as Malee was, and despite Malee's advice continues to be rebellious and eventually commits suicide.
Even after the death of her charming pimp (Sorapong Chatree), Malee continues until one day she is able to become independent of the sex trade, and there is a happy ending for her as she is able to open her own dress shop in Bangkok.