- Country: Denmark
- Genres: Crime, Drama
- Release: 1957-08-23
- Director: Palle Kjærulff-Schmidt , Robert Saaskin
- Writers: Palle Kjærulff-Schmidt
- Language: Danish
- Stars: Birgitte Price , Ib Mossin , Ghita Nørby , Bent Christensen , Lone Hertz , Preben Kaas , Jakob Nielsen , Christian Brochorst , Jørn Jeppesen , Poul Müller
- Runtime: 86 min
- Awards: 2 wins
- AKA: Bundfald (Denmark) , Natt i Nyhavn (Sweden) , Sin Alley (United States of America) , Bundfald
- Plot: Desperation has a good hold of the youngsters. There are no more than 30,000 teacherships. Young people from the province are flowing to Copenhagen in the hope that the possibilities are greater there.
- IMDB:tt0122416
Sin Alley Cast · · · ALL
Palle Kjærulff-Schmidt
Director
Robert Saaskin
Director
Ib Mossin
Anton
Ghita Nørby
Else
Bent Christensen
Kaj
Birgitte Price
Rosa (Kajs søster)
Lone Hertz
Rita
Preben Kaas
Egon
Jakob Nielsen
Skipper
Christian Brochorst
Moster
Jørn Jeppesen
Bilhandleren
Poul Müller
Antikvitetshandleren
Povl Wøldike
Kontorchefen
Bendt Rothe
Kriminalassistenten
Ove Rud
En opdager
Jørgen Buckhøj
Poul Secher
Fattig mand, der samler skod op
Hjalmar Madsen
Keld Stanley
Gunnar Bigum
Jørgen Bidstrup
Benny Juhlin
Hugo Bendix
Erik Olsson
Portier på Hotel Selandia