Lin Zhou, a 26-year-old old mobile phone recycler in Jiangcheng, is poor, uneducated and a member of the lower class.
Until that day, he saw the last image of a strange woman from a broken old mobile phone - she was desperately trying to save data into the mobile phone before she was murdered.
The police said it was suicide, but what Lin Zhou "saw" was murder.
From then on, every recycled old mobile phone is a key, opening a door to secrets. Derailments, murders, conspiracies, and even fragments of state secrets...
He knows too much.
When the old mobile phone recycling channels were deliberately manipulated, when every memory was pieced together into a shocking conspiracy, Lin Zhou discovered that he did not pick up these mobile phones by chance, but was chosen by someone.
"You think you are investigating the truth? No, you are part of the truth."
From repairing home appliances to negotiation skills, from medical knowledge to trace identification, Lin Zhou has become more and more "all-round". He began to help an old man living alone find his lost comrades, replace his deceased mother's birthday gift for his daughter, and organize an exhibition for a painter who died alone...
Until he received a mobile phone - the owner of the mobile phone was a well-known entrepreneur who had been missing for three years. In that phone, Lin Zhou saw the memory of the murder and a huge secret hidden in the darkness of the city.
