Strange thing about this trip. So much occurs in pairs. Tennis star Guy (Farley Granger) hates his unfaithful wife. Mysterious Bruno (Robert Walker) hates his father. How perfect for a playful proposal: I'll kill yours, you kill mine. Now look at how Alfred Hitchcock reinforces the duality of human nature. The more you watch, the more you'll see. "Isn't it a fascinating design?" the Master of Suspense often asked.