The Only Son

Hitori musuko is a movie starring Chôko Iida, Shin'ichi Himori, and Masao Hayama. A widow sends her only son away to receive a better education. Years later, she visits him, finding him a poor school teacher with a wife and son.
A silk factory worker is persuaded to support her son's education up to a college level despite their poverty. Many years later, she travels to Tokyo to visit her son.