This movie is an interesting thriller-comedy which amuses the audience and simultaneously grips the audience's interests by the mysterious turn of events.
The backdrop of the film revolves around a small village where the people are very conservative and superstitious. Badri (Manoj Joshi) heads a Brahmin family whose ancestral palace is believed to be haunted. One day, Siddharth (Shiney Ahuja) and Avni (Vidya Balan), the son and daughter-in-law of Badri's elder brother return to their native village from America.
Events take on a twist when some unnatural events start taking place inside the palace. The blame comes to rest squarely on Radha (Amisha Patel), the adopted daughter of Badri.
Suddenly a psychiatrist from America, Dr. Aditya (Akshay Kumar) enters the scene. He is Siddharth's friend and uses modern analytical techniques to find out the culprit and solve the mystery. The film becomes a roller coaster ride from this point onwards.
Bhool Bhulaiyaa is a perfect blend of thrill and humor revealing undiscovered dimensions of human psychology which many of us could never even have imagined.