Have you ever done something that you deeply regret? Did your life change after that incident?
In order to avenge his mother, Chen Mo, a people's policeman, caused casualties in an unauthorized operation. He was fired from the police station. He met his lifelong best friend in a shared apartment. What will happen to Chen Mo on the way to chase the murderer? Who was the murderer of his mother?
Intention: Our meeting may be due to accidental fate, or it may be that we once had an unforgettable memory in another identity...