A French baker named Michel Flamant nearly died from a carbon monoxide intoxication due to a flaw in one of his ovens. Jérôme, a 37-year old homeless man, who used to beg outside the shop, realized that the baker was in danger, called the paramedics, and thus saved his life. In return, the baker decided to train Jérôme and teach him how to bake, so he could take over the business when Michel retires.