The original script for the film was written by Australian playwright Max Mannix, who once lived in Japan. In 2006, two film production companies became interested in this book, one is Entertainment Farm in Japan, and the other is the well-known Dutch company Fortissimo. Fortissimo has worked on James R. Jarmusch and Wong Kar-wai , but has never worked on a Japanese film before. At first, the company held a half-wait-and-see attitude - if it can find a good director to take over, it will officially join hands with Entertainment Farm.
At the Venice International Film Festival in 2008 , things took a decisive turn. " Call " by Kiyoshi Kurosawa is one of the participating films. Producers from both companies met Kurosawa at a meeting, and they immediately decided to ask him to direct the film. At that time, Kurosawa was running out of horror movies and was looking for a change. After reading the original script, Kurosawa felt that this concise and powerful story had the potential to be a movie, so he agreed to it, and decided to let go of the subject he had never grasped.
