家园入侵，敌影潜伏，心如刀绞，烽火连天。用嘴征服老丈人老枪

　　A nightmarish essay film on the history of the doorbell, tracing its invention and constant reinventions through 19th century labor struggles, the nascent years of narrative cinema, and contemporary surveillance cultures. 　　源自：https://www.berlinale.de/en/2023/programme/202306593.html