Leo is having trouble with Diane: the emotional woes of youth. Fortunately Mot arrives with Rita Glamour, a specialist in matters of the heart. A good love potion will do the trick, except when Mot is the one who drinks it and the falls in love with Leo. Leo's running away in order to escape the attentions of his big buddy, somewhat disturbs the sunbathing of mother and Zelda. As for Diane, she is swiftly engulfed by a wave of jealousy. Who indeed is this invisible rival who does nothing but shout declarations of love for Leo?