A woman's marriage is on the rocks ; to avenge herself, she decides to take a lover for one night .So she buys all his stock from a balloon man and flies them through the Parisian sky ; all her balloons carry a message :"I will be alone after midnight" (hence the title); a lot a suitors comme to the rendezvous : a fisherman, a soldier, a traveler , a gentleman cambrioleur (a nod to Arsène Lupin?) and others ,much to Michel, a young man in love with her's displeasure.
Production
Those balloon messages over Paris—pure visual poetry.
Costume
Monique's midnight rendezvous wardrobe is devastating.

Director
Jacques de Baroncelli
Trivia, insights & behind the scenes
This is peak pre-Code cinema—Hollywood's Hays Code was cracking down, but France kept serving sexually frank heroines who actually wanted things.
Director Jacques de Baroncelli made over 70 films and somehow this balloon-fueled marriage revenge comedy isn't even his weirdest.