We Only Live Once (1958)

As timid as a deer, Kleon, an impecunious and fiercely conscientious bank teller who works his fingers to the bone for peanuts, dreams of making a better future for himself--and perhaps having a slice of the good life. Trapped at his tiny desk, Kleon is fed up with counting other people's money, until one day a formidable and equally-inexplicable accounting discrepancy transforms the once-honest employee into an out-and-out embezzler bent on realising his dreams of grandeur and his unspoken, suppressed desires. However, more money always means more problems, and as statuesque gold-digger Bibi intends to soak him for every penny, more and more, Kleon comes to understand that all good things must end. Suddenly, Kleon realises that he has spent nearly half his life behind bars. What good is a life of riches when you have lost your soul?