In the 1990s, Nanlong, a border county.
After a mountain rain, detective Shen Lichuan pulled out a blank medical record. The patient's full name is missing, there is no wording in the treatment column, but someone has deliberately obscured everything in the file.
The free clinic ten years ago, the missing man, the witness who changed his story, the hidden photos, and a person only called "Three Beds" by the nurse brought an old case back to the public.
No cell phones, no surveillance, no modern technology. Shen Lichuan could only rely on paper documents, footprints, oral confessions and people's hearts to investigate bit by bit.
But at the end of the investigation, he found that the most difficult thing to find in the old case was not the murderer, but the name that a person should have.
