To reach this end, Jae-yeong is prostituting herself while Yeo-jin acts as her pimp, setting her up with the clients and staying on guard for the police.
Things take a turn for the worse when Yeo-jin gets distracted from her duty and the police raid the motel where Jae-yeong is meeting with a client.
After Jae-yeong's death, Yeo-jin blames herself and to ease her own conscience, sets to return all of the money they earned to the clients while sleeping with them herself.
For the rest of its duration, the movie follows the father and daughter on a short trip to the countryside, where they both sense something is wrong with the other, but are unable to confront each other directly.
As with other films by Kim Ki-duk, Samaritan Girl was not a box office success in its home country, but was better received overseas.