Woh Kaun Thi ? is a suspense thriller. It was a Block Buster in 1966. K.H.Kapadia has bagged the Film Fare award for his fabulous camera work.Raj Khosla has directed this flick.
Dr. Anand (Manoj Kumar) is in return to home. He notices a lonely lady in the scary rainy night on the road. He offers a lift to her. She introduces her self as Sandhya (Sadhana). Instantly after she stepping into the car, some strange thigs takes place, which Anand not notices. Later he watches her hands which are bleeding, She simply replies about that, she likes blood when he asks about the bleeding.
This makes Anand to shock a movement. Anand watches an old man who came for the help. The old man says that, his daughter is in deep trouble please help to him. When Anand goes to there, he notices that, she is none other than Sandhya and also she died.
Anand comes to know that, Sandhya is following him as ghost. What is the relation between them and why she is behind him is the remaining story.