When a struggling French patriarch believes fortune has finally favored him, he eagerly prepares for his son’s marriage to the daughter of a wealthy man. The young woman, accompanied by her aunt, journeys to the rural French countryside to meet her future in-laws. However, their arrival coincides with the lurking presence of a sinister beast that stalks the area, casting a shadow over the family's hopes and intentions. As tensions rise, the true nature of both the beast and the family is set to unravel in this suspenseful tale.