In May 2016, a director disappeared. Then, one day in 2017, the video tape and USB memory that were delivered to the staff were images shrouded in horrifying mysteries. Kotaro Terauchi, the director of the "monitoring camera", stands up to solve the mystery! From DVD "Boundary Camera" Series 1, the case progresses and becomes even more confusing. What is Kiritani? What is Hanako Tanaka's true identity? Mystery beckons mystery, and the crew goes to a boundary that should not be entered. What lies ahead...