Canadian psychologist David Stone is in trouble. He has a dead body he doesn't know what to do with. CIA agent Rita Brickston is also in trouble. Russia's SVR must silence her to protect their mole in the CIA. Rita plays cat and mouse with her pursuers across Europe, Upstate New York and Southern Ontario, in a desperate bid to reach safety. When Rita's flight from the SVR converges on the Stone family, they are drawn into a lethal game. Toronto's Norman Hall's Four Stones is a brilliant journey into the dark world of international espionage.