The story takes place in the busy metropolis of Shanghai. Hong Mei (Wu Junmei) has a happy family, but the family begins to fall apart after an accident. Hong Mei knew that her husband's death was not an accident, but was killed by an adulterer. In anger and pain, a weak woman who was unarmed and submissive decided to take revenge. With the help of others, Hong Mei got the pistol and found the murderer. She ruthlessly pulled the trigger and pulled the gear of fate with her own hands. What Ling Hong Mei did not expect is that her actions put her son in danger. In order to protect her son, she had to raise her gun again. Red Beauty decides to return to a quiet life, and then a man named Mike (Richard Bucky Richard Burgi) appears by her side. Mike's handsome and gentle soothed the tired heart of red beauty, but then she found that Mike's appearance was no accident.