Homecoming (Original title: Heimkehr) is a 1928 German film directed by Joe May.
Richard and Karl are German prisoners of war in Siberia. Since escape is almost impossible, they are unguarded and live an almost idyllic existence running a ferry. Richard misses his wife Anna greatly; he literally counts the days since he's seen her and tells Karl about her and their home in detail. When he decides to escape, Karl comes with him. While crossing a desert Richard collapses. He asks Karl to go on without him, but Karl refuses to leave his friend and carries him. But when Karl leaves to get water, Richard is recaptured and sent to work in a lead mine. Karl makes it back to Hamburg, where he meets Anna and occupies a spare room in her flat. Soon friendship deepens, and both he and Anna have guilt feelings about their attraction. Meanwhile the war ends, and Richard returns just in time to witness Karl and Anna's first kiss. After his initial anger, Richard goes to Anna's bed. She cries; he takes her in his arms; she returns his embrace; but when he begins to make love to her, she refuses his advances. Richard returns to the room where Karl pretends to be asleep. He takes a pistol and prepares to kill Karl; but as he holds the gun to Karl's head, he recalls his friend's carrying him across the desert and puts the pistol away. Realizing that "Nobody's to blame," Richard leaves Karl and Anna to each other and returns to his other great passion, life at sea on one of the great freighters that sail from Hamburg.