The Crowded Train (movie, 1957)

Tamio Moroi, a young university graduate, works at a large brewery where he is taught to do nothing but look busy. When his father goes insane, he is told to send money for medical research into the condition. This prompts him to pay his father a visit, leading to a series of mishaps that leaves him at the bottom of the heap in what he once expected to be a promising lifetime career.