Rather than commit suicide, it is better to stay at the clinic of Professor Patureau-Duparc. This practitioner experiments on his clients with a serum that modifies their personality. Thus Yolande and Albert become new Romeo and Juliet. They end up marrying each other after having regained their primitive selves. Their married life is then a hell and they welcome with joy the proposal of a new injection of serum.
Albert
Yolande
Le client du bar qui reçoit Yolande dans ses bras ("scène avec N. Nattier et J. Marchat")
Mme Tritonel
Le professeur Patureau-Duparc
Faustin
Mme Boze
Un client
L'habilleur
Une cliente
Une cliente
M. Tritonel