Usmiech zebiczny

Usmiech zebiczny (pl.Teeth smile) is a 1957 Polish short film written and directed by Roman Polanski. A man walks down the exterior staircase of some building, He passes a small window. He looks in, and there a young woman standing at a washbasin, drying her hair with a towel that covers her face. The man is interrupted by a door opening, the occupant begins bringing out empty bottles. The man starts down the stairs, only to return to the window after the door has closed. He again looks in the window and is surprised.

In his autobiography, Roman Polanski says that the theme was set for him by a supervisor at film school.

A man walks down the exterior staircase of building of flats; he's dressed to go out, taking care to wrap a scarf around his neck. He pauses as he passes a small window that's about eye high. He ventures to look in, and there a young woman stands at a washbasin, drying her hair,