To farmer JEAN FOURNIER, the prehistoric burial mound of LE VIEUX VICENTE is a special place to go and just dream. According to his elder brother JOSEPH, it's a waste of good farming land and should be dug up, yet he secretly fears it to the point of phobia. Their sister HELENE tries to mediate between her brothers, but she also is drawn to Le Vieux Vicente and worries that its influence is taking over their lives.

It's 1940 on the west coast of France, and when the Nazis invade, they too take an unfathomable interest in the ancient tumulus.

As the three siblings each engage in their different struggles to survive the German occupation, the family divisions, the deceit, and the paranoia, can they overcome the silent enemy, the power of the mound?

A story of the love between three siblings set against the backdrop of the Nazi occupation of France leading to a violent climax as the Allies liberate the northwest coast.