Min Yue is a normal community’s police. She cares the people from community no matter working days or off days. Due to an emergency happened in the weekend, she can’t company with her daughter to practice violin. She has to handle the disputes in the community. When she see the difficulties of the mental challenged girl, she acts like “mother”,but she forgets her daughter. When she is taking care of the old people, she finds some criminal clues, and with love to help the bad man to become good.