Xu Ping'an, a habitual thief wandering in the shadows of the city, spotted the silver chain on the wrist of Su Qingyue, the nightclub's "Ice Princess" on the subway. It was supposed to be a quick, accurate and ruthless attack, but because of Su Qingyue's tired and defensive eyes, he accidentally became her shadow. Two marginal people who deride themselves as "mud" unexpectedly collide with each other in the cold reality and create a weak spark. Together they weave an ordinary dream, trying to escape from this suffocating life. However, the large web woven by old debts and evil forces behind Su Qingyue is tightening ruthlessly.
