Here it goes:
1) Nobody is killer in the movie. Three friends killed prostitute Kareena Kapoor and she becomes ghost n helps Aamir to take her revenge. This is the story
2) Rani Mukherjee has small role as wife of Aamir Khan & their son has died in an accident so they have disturbed life.
3) Kareena is a hooker who got killed by three friends. Aamir comes to solve case & Kareena helps him as ghost to take revenge from her killers
4) Even ppl think that Aamir is mad in the movie because he can see Kareena Kapoor while others can't see her. This is the only suspense in the whole film
5) No Aamir has not lost his memory like Ghajini. He is disturbed because his son died in an accident just like Kareena who also got killed in an accident only.
6) Only Aamir khan can see Kareena Kapoor. This is suspense which audience will come to know in the end.
Do you wish to own this movie? If yes it is given below. Choose the frame that attracts you most. No worries about the size. They aren't as small as Aamir Kutta Khan is. Clicking them will show you their original sizes.
Credit for revealing the entire story goes to Kamal R Khan.