Nurse Sinikka (Pirkko Peltonen) wants to help a prisoner (Toivo Lehkonen) who crosses the border from the Soviet Union. She and her fiancé (Ville-Veikko Salminen) plan a flight via Finland with the help of her mother (Irma Seikkula). Ruth (Maija Karhi), the girlfriend of Sinikka's brother (Antti Litja), happens to witness the escape, which puts them all in danger.