Using an atomic reactor, two scientists try to create gold.
In 1945, Ernst Machner returns home from the war in his mid-20s. Tuche would like him to weave for a living, but his comrades persuade him to become a young teacher instead.
Heinrich George plays Henner who lives with his wife and child on a tugboat, going on the river to Berlin. There he meets the attractive Gescha (Betty Amann), and a story of love, betrayal and sadness ensues.
