This is the French-language version of the exotic German drama Saison in Kairo.  Set in Cairo (where else?), the story revolves around the efforts by Toby (Georges Rigaud) and Stephy (Renate Müller) to marry off Toby's mother (Spinelly) to Stephy's father (Henry Roussell).

The complications:  Toby's mom is forever involved in highly publicized scandals, while Stephy's dad is a chronic gambler.  In addition, the parents misunderstand their children's attentions, assuming that Toby and Stephy are in love.  It isn't hard at this point to figure out which couple will be marching down the aisle at film's end.