Supermarket (1974)

"Supermarket" is a 1974 Crime movie directed by Roland Klick and starring by Charly Wierczejewski, Eva Mattes. Willi is 18 years old and lives on the street. Without a goal in his life he walks around the city and meets several people, helping but also cheating him. When he meets a girl, Monica, he realizes that there are people out there whose lives are even more desperate than his. So he's trying to help her (and him) by planning a great robbery on a supermarket's money transporter.