Based on

Movies like Killing Skill (2001)

Rain had a fine family, she lost everything in a murder. In order to get revenge on the man behind the murder, Rock. Rain acts as a killer with Ying's help. However, during a fight, Rain uses her body to block the killing knife for Vanessa. But Vanessa is using adopted children to sell drugs for Rock. And Rock is using those children to get Rain into the trap...