Song Anyun, the female killer in H City, whose code name is "say", has always been her epitome of being ruthless and killing without blinking an eye. She was framed by a traitor and had to enter the police station to hide her identity. Here she met police officer Gu Kejing. As the truth comes to light step by step, where should their relationship go? Either be arrested or imprisoned or escape from here.
Concept: The world is neither black and white nor white and black.