Temptation summary II(四度誘惑)

When two prostitutes Wah and Fong find their dreams shattered, they turn to be starred in the sex movies. A second class actress Tracy intentionally exposes her body that brings her lots of movie contract and a wealthy guy. She also seduces her sister's boyfriend and gets him caught. Her despairingly sister, losing all she uses to have, chooses to play in the pornographic movies