無防備都市
The Machine to Kill Bad People (Italian: La Macchina ammazzacattivi) is a 1952 Italian fantasy comedy film directed by Roberto Rossellini and featuring Marilyn Buferd, William Tubbs and Clara Bindi. It is part of the tradition of neorealism of the post-war years. Having helped neorealism gain international recognition with his 1945 work "Rome, Open City", Rossellini was trying to branch out into different styles.