Reflet dans un diamant mort

John D, a septuagenarian living in a luxury hotel on the French Riviera, is intrigued by his female neighbour who reminds him of the wild times spent there during the 1960s, when he was a spy in a changing world full of promise. One day, his neighbour mysteriously disappears and leaves John to face his demons again: are his former adversaries back to sow chaos in his idyllic world?