The Eiger Sanction (1975)
A classical art professor and collector, who doubles as a professional assassin, is coerced out of retirement to avenge the murder of an old friend. art collector, assassin, based on novel or book, hitman, espionage, secret intelligence service, switzerland, mountain climbing, alps mountains, swiss alps, spy ring, rock climbing, college professor, spy thriller, american southwest, art collection, art historian, retired assassin, monument valley, zion national park
ETC.
