The movie is based on "Dr. Jeckal and Mr. Hyde". Sanjeev Kumar plays the lead role.
One of the many below average B graders where Sanjeev Kumars shines above the cast. Thankfully, Sanjeev Kumar was one actor who had his own specialist make-up man. His make-up is better compared to what we see in many such B graders (though it is still average by Hollywood standards).
Rekha plays sweet heart of Sanjeev Kumar. She has nothing to do but provide glamor to this thriller.
If you have already seen any version of "Dr. Jeckal and Mr. Hyde" this movie would be just a waste of time. Have not and want to see "Dr. Jeckal and Mr. Hyde" in Hindi - this is the only choice. But I must warn you this is an average B Grade movie. You have a good star cast that supports in this movie.