Richard (Tom Hanks) is a classical violinist who's picked out of a crowd and accused of being a spy just because he wears one red shoe. Soon, he's mixed up in a dispute between two factions of the CIA, with both sides following his every move: Cooper (Dabney Coleman) is the agency's ruthless leader who pulls out all the stops to find out what Richard knows, while Ross (Charles Durning) must track Richard in order to keep him safe.