HIS LIFELINE - held by the assassin he hunted.
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