Unexpectedly overrated
First of all, I love Woody Allen, I truly admire him. Now, I was disappointed by this movie for several reasons.
First, the main plot with the doctor that wants to kill his mistress is extremely common and ordinary.
Second, I found it not funny (although this may be more subjective).
Third, the ending was so banal and coarse. It was like having been written from an uninspired first year student of philosophy -nothing witty, just some timeworn and superficial lines about "choices and how they make us".
For these reasons I am very surprised by the 8/10 (!) in IMDb and some remarks here about the film being "Allen's masterpiece". I gave it a 6/10
Personally, I think his best film is one of Love and Death, Annie Hall or Hannah and her Sisters.