A poor wretch, who has just been hired as a music-hall artist, in spite of himself becomes the tenant of a particular Parisian building.
Commissioner Malaise investigates a strange crime: a mannequin, stolen from the window of a tailor, is found stabbed... But his face of wax has the features of a certain Gilbert, who died a year earlier in a family, all of whose members will become more or less suspicious to the Commissioner. He thinks that, in spite of Dr. Furnelle's conclusions, Gilbert's death was not natural. But finding the cause of death and the identity of the possible culprit will require more than a mere intuition.
Jacques is a jolly bachelor who lives a wild life with his a mistress Wanda and all he wishes is to go on living the way he does. But Father won't allow. He demands that Jacques get married. More or less reluctantly, Jacques decides to comply but on the way to his father's home - where he is to meet the bride Dad has chosen for him - the young man comes across the charming Simone and falls in love with her at first sight. He elopes her, determined to ignore his progenitor's orders. Little does he know that Simone, the girl of his heart, is none other than the one he was supposed to marry...
