Jeanne is the recognized sauce Chef of a Parisian palace that just opened on the Place Vendôme. She discovers that her son Paul has been kidnapped. If she wants to see him alive she must murder an Austro-Hungarian emissary during a diplomatic dinner party that is to be held at the hotel. Ignoring the kidnappers' warnings, the poor distraught Jeanne goes after her son. There are only a few days left to free Paul before the fateful date, when if it be so, she'll be forced to murder the emissary.
—Happy_Evil_Dude