Awesome performance by Vidya Balan. A Predictable Plot-line with no real surprises. The first half is brilliantly constructed, the loose script relies too heavily on the protagonist in the second half.
The mind-blowing editing keeps the movie breathless. Kahaani 2 has nothing to do with the first installment, Kahaani is a genre of pacy thrillers. Mindless at some bits, too good at others; Kahaani 2 fails to keep the balance. It could have been so much more, hopefully Kahaani 3 will fill up the blank spaces.