Mårtenson was a Finland's-Swedish actor.
A movie based on real wartime diaries tells the story of the Swedish speaking Finns' infantry regiment 61. The story follows the regiment during the Continuation War from 1942 to 1944 and from Syväri to the Karelian Isthmus where they faced some of the most grueling battles against the Soviet Union.
This love story finds a lonely teacher resisting the advances of an interested co-worker. She is fearful of affection and relationships due to a previous romance that did not work out. The small-town school marm tries to help a male student who has been suspended for drunkenness. She tutors the young man, and soon the two engage in a tender and passionate love affair in which both people reach out and touch each other physically and emotionally.
Juha is a sales manager of a refrigerator company. His perfect-looking family and glittering array of modern kitchen appliances have just been featured in a magazine article, but in reality Juha is a womanising chauvinist more at home on the road than with his family.