Writer Harry Street reflects on his life as he lies dying from an infection while on safari in the shadow of Mount Kilimanjaro.

Having met on a train, a smooth-talking psychotic socialite shares his theory on how two complete strangers can get away with murder to an amateur tennis player — a theory he plans to test out.

1941 film directed by Alfred Hitchcock

When Dr. Anthony Edwardes arrives at a Vermont mental hospital to replace the outgoing hospital director, Dr. Constance Peterson, a psychoanalyst, discovers Edwardes is actually an impostor. The man confesses that the real Dr. Edwardes is dead and fears he may have killed him, but cannot recall anything. Dr. Peterson, however is convinced his impostor is innocent of the man's murder, and joins him on a quest to unravel his amnesia through psychoanalysis.

Advertising man Roger Thornhill is mistaken for a spy, triggering a deadly cross-country chase.