A student from an elementary school accidentally breaks the glass roof of his school. His comrades decide to support it by working during the summer holidays in order to pay for reconstruction.

Having cured the local café owner, Diogène Leguignon becomes convinced that he is a healer and possesses the fluid. His wife sees the benefits of this gift and urges Diogene to exercise his power, particularly on a wealthy old man, M. Coq. Arlette Leguignon, however, is in love with a young doctor, who is violently opposed to her future father-in-law. Leguignon ends up condemned and, disgusted, no longer wants to look after others. When Mr. Coq dies, making him his legatee, Leguignon has to contend with the Coq family. This time, Doctor Martinet comes to his defense. The inheritance is used to build a clinic where Leguignon can carry out his experiments as a magnetizer.

The director of a private institution is the father of seven charming young girls. He has money worries. A rich bachelor, still young, a few years ago advanced him a large sum of money. He makes frequent visits to his debtor; the poor father, as mediocre a psychologist as he is a poor businessman, hammers himself in his head, not guessing that the visitor is reluctant to make his choice between the seven sisters.