In December 2013, Josh Richards was gunned down in the Luna Lounge nightclub in Appleton, Wisconsin. When detectives delve deeper into the investigation, they discover a camera has the potential to reveal the identity of a cold-blooded killer.

Chinese exchange student, Yingying Zhang, mysteriously vanishes from the University of Illinois campus. Police and FBI turn to video surveillance footage to uncover the shocking and sinister reality and bring a cold-blooded murderer to justice.