Lauri and Anna are released from prison. They run into trouble when they cannot find work because of their past. Lauri obtains false identity papers, which enable him to get a job at a factory. A dangerous criminal named Asseri begins blackmailing Lauri, who is using the alias "Pentti Tahvana." Lauri's true identity is revealed in connection with the murder of Kaalep, the factory's night watchman.