The Night of the Angels (1968)

Three young friends with three different personalities are working in a shop. The first is a serious man, the other a fool and the third is an ordinary guy. Though poor they try to fool the girls by showing themselves as riches so to get a chance to marry them. They meet three girls and introduce themselves as engineers to the girls. But when meeting their families the father of one of those girls is turned out to be the shop's owner in which they are working so they run away.