The film was shot guerrilla-style on a dozen locations in St Petersburg, Russia, over five days in May 2019.
The title is taken from the 1936 novel by German author Erich Maria Remarque, but the only similarity is that the film also has three main characters.
Vladimir Kozlov: Writer/director Vladimir Kozlov, uncredited, as a car driver. In the opening sequence, in which the three main characters are being "interviewed," he also asks them questions off-camera.