Everything.

Here's a strange one. First, a song on a blackboard: a Polish translation of “I love my little rooster” by American folk writer Almeda Riddle. Then, two men roll around trash bins and lift them to the garbage truck. They do it several times. A woman shouts in the distance. At the end, the picture stops, and the woman sings the song. An early short by Piotr Szulkin.