Two paintings are stolen .Amateur private detective Roland Gautier investigates.

Two painting are stolen ,in an art gallery and in a painter's house.The burglars always leave the picture of a royal seal after their theft.The local captain in charge of the investigation is not very smart ,but fortunately private detective Roland Gautier takes the affair in hand : it must be a gang .He suspects the shady owner of a nightclub .Gautier is kidnapped and held prisoner on a barge.To get rid of him, the criminals want to drown him.The boss's mistress,Irmène ,remembers that the young man saved her little brother's life and decides to help him.—dbdumonteil

Two paintings have just been stolen in an art gallery and in a painter's house.Amateur private detective Roland Gautier investigates .He thinks it must be a gang who signs the thefts with a "royal seal" sign.A little boy ,Marcel,is almost run over by one of the criminals and saved by Roland whose investigation takes him to a nightclub where the shady owner is none other than Marcel's sister 's lover.The young woman, Irmène, won't forget what the young sleuth has done and will be of great help when his enemies want to drown him.As for the kid, he will be here when Roland almost dies of asphyxiation.But who is the brains behind the job?Le Père Simon an old restorer?the threatening one-eyed Saladin?the nightclub owner? Imaneff the famous painter? Or even Jean Talais, Roland's good friend whose attitude is bizarre?—dbdumonteil