Georges and Anne are in their eighties. They are cultivated, retired music teachers. Their daughter, who is also a musician, lives abroad with her family. One day, Anne has a stroke, and the couple's bond of love is severely tested.
When Ann, husband George and son Georgie arrive at their holiday home they are visited by a pair of polite and seemingly pleasant young men. Armed with deceptively sweet smiles and some golf clubs, they proceed to terrorize and torture the tight-knit clan, giving them until the next day to survive.