A case involving a missing female university student and a hit-and-run victim seems to point to the same individual. Detectives are on the hunt for a witness, and they find Min Soo-Ah, who, despite being blind, steps forward. Once a promising police academy student, Min Soo-Ah uses her heightened senses to uncover crucial details about the hit-and-run incident. Another witness, Kwon Gi-Seob, also comes forward, but his account conflicts with Min Soo-Ah’s. The investigation takes numerous unexpected turns, with Min Soo-Ah eventually confronting the murderer.