When her mother falls ill under mysterious circumstances, young Eve (Fantine Harduin) is sent to live with her estranged father’s relatives in Calais. The Laurent family – wealthy, neurotic and self-obsessed – own a lucrative construction company and live in a sprawling mansion house, waited on by servants. But trouble is brewing, as a series of intergenerational back-stabbings threaten to tear the family apart. Meanwhile, distracted by infidelities and betrayals, they fail to notice that their new arrival has a sinister secret of her own.

Happy End is out in cinemas from 1 December.