Junoon Urdu , English Madness or Obsession is a 1992 Hindi horror film directed by Mahesh Bhatt. The film makes use of morphing, a special effect in motion pictures and animations that changes or morphs one image into another through a seamless transition, to transform human face into tiger and back from tiger to human. Junoons basic plot has been lifted from the 1981 Oscar winning classic An American Werewolf in London directed by John Landis starring David Naughton.
The shots fired by Vikram are heard by Harry Tom Alter and the Forest Officer Bhaskar Inamdar Homi Wadia who rush to the spot. There they find Bheema attacking Vikram to kill him. He claims that Vikram has gotten cursed and if he is killed before the curse reaches him it will save him from a cursed life. Harry and Bhaskar however transfer Vikram to a hospital in an attempt to save his life.Later on in the hospital, Vikrams hopes of survival are minimal and he is confirmed dead. The spirit of the tiger then enters Vikram and he returns from the dead, much to the shock and amazement of doctors. Vikram is treated by Dr. Nita Pooja Bhatt and he begins to like her. As the days go by, Vikram realises that there is an evil present in him. His dead friends spirit tells him about the cursed tiger and that he himself will become the same beast on the upcoming full moon and every full moon thereafter. His friend also tells Vikram to kill himself, but Vikram refuses saying that he will accept whatever his future has in store for him, preferring a cursed life over death. ........
Source: Wikipedia