What's 30... What's 40... What's 50... (1972)

Unexpectedly, the middle-aged businessman and old-school bachelor, Zachos Fokianos, finds out that the young and fresh daughter of one of the many women who are after him has secretly fallen head over heels in love with him. At first, denial takes over; however, after giving it some thought, Zachos finally decides to give in to the newly-found love--and as he starts feeling like a new and rejuvenated version of his old self--Zachos makes plans for the future. After all, ageing is just a state of mind. Isn't it?