You Are the Only Reason -- Manolis Chiotis

This is the video that sent me down the into the strange world of 1950's and 60's Greek videos!  It is swingy number in a happening nightspot, inhabited by an array of characters. 

The lyrics (wallowing in self-pity and petty recriminations) can be found at https://lyricstranslate.com/en/εσύ-σαι-η-αιτία-you-are-only-reason.html

For the vinyl freak, there is an instrumental version of this on an old Nina LP "Immortal Glories of Greece" (Nina LP-76); towards the end of that version the band hots-up the tempo to frenzy!