Too much Jane Fonda, too little suspense
This movie seemed to me as just a vehicle to showcase Fonda's acting chops (she IS a fine actress and I know she won the Oscar of Klute)
But the movie as a whole suffered in my view. I would have edited out ALL those shrink scenes, also cutting the screen time of Fonda by about 15 min. Give the movie more of a detective/suspense feel to it instead of focusing on the emotional world of the call girl. Really, Sutherlands character had about 50 words in the movie.
Fonda probably had too much juice in 1971 to be edited out. Warner Bros probably smelled Oscar and went with it.
I really love the score however!