1920. Jean Rezeau and his elder brother were living happily in their family estate in Brittany, until the death of their grandmother. The return of their mother, a worthy descendant of fairytales' witches, brings an all new atmosphere to their home.
An old man in dressing gown and slippers is abandoned by his family on an area of highway while on vacation. He later finds himself in a hospital where a nurse, Gégène, calls him Mischka.
Following a series of unsolved robberies, the authorities decide to give carte blanche to commander Clara Damico to neutralize a particularly organized gang. Manual Makarov, a well-known figure in organized crime, is currently serving a sentence of twelve years in prison. Commander Damico promises him freedom in exchange for his cooperation. He refuses. There is no other solution, she is obliged to compel him by force.
