Dao has come to Bangkok and starts working as a waitress. Many patrons wanted to bed her but she refused any offers. One day her father is ill and she needs money for his treatment, so she agrees to become the mistress of a rich business man. But his wife finds out and wants none of this.

Lamphu is staying with her sister, Ramphai and her boyfriend, Sith. Sith has an affair with Lamphu and when he finds out that she already has a boyfriend he kills her in a rage.He dumps her body in the river and tells Ramphai that her sister stole something and then left.