Raaz 3 (2012)

Shanaya Shekhar is an influential Bollywood actress who has been romantically linked to famous Bollywood film director Aditya Arora. Her career begins to decline when a debutant actress named Sanjana Krishna receives accolades and appreciation. Shanaya seems forgotten, and everybody only wants to work with Sanjana. Soon enough, Shanaya sees her career abruptly fading away, and her envy turns into madness. She turns to black magic and makes it her medium to destroy Sanjana's career and make her feel the pain of loss that she is facing.

She seeks the help of her former servant, Sonu, a tantrik who helps her practice black magic and calls upon a black magician named Tara Dutt. She asks him to destroy Sanjana's life and career but not to kill her. Tara agrees to help haunt and torture Sanjana until she becomes suicidal. He asks Shanaya to give Sanjana a black poison through a person she trusts. Shanaya convinces Aditya to do it for her. Although reluctant at first, Aditya agrees due to his love for Shanaya. Sanjana hallucinates weird and horrifying incidents in her home and shooting locations. Her maid Nandini committs suicide and soon Aditya realizes that what he's doing is immoral.

Aditya, whose sympathy for Sanjana has now turned into love, leaves Shanaya and refuses to listen to her anymore. To end Aditya's and Sanjana's relationship, Shanaya hatches a plan by befriending Sanjana to poison her, which makes Aditya suspicious. It is also revealed that Sanjana and Shanaya are 2 step sisters from same father, where Shanaya was the neglected one by her father and all the love and affection were for Sanjana only.

At a movie premiere, Shanaya reveals that she actually dripped a black magic spell on the chocolates she gave to Sanjana earlier. In the bathroom, Sanjana is attacked by a swarm of cockroaches, which is really a hallucination due to the black magic of the chocolates given by Shanaya. This causes Sanjana to remove her dress and run back to the party, thus exposing her nudity to the paparazzi and the people there. The public wrongly believes this to be a deliberate publicity stunt of hers, causing her career to be on the verge of being ruined. Aditya takes her to a hospital and finds out that Shanaya is behind it. Enraged, Aditya visits Shanaya's house and damages her possessions, taking away the last bit of the poisonous water.

Agitated, Shanaya seeks Tara Dutt's help again, wanting to kill Sanjana once and for all. Tara Dutt tells Shanaya that life and death are in God's hands, not evil and that to fight God, he'll need her life force. He tells Shanaya that she has to have sex with him to enable Tara to become powerful enough to fight God, to which Shanaya agrees. At the hospital, with the help of the doctor and a priest, Aditya goes into the spirit world to fight Tara Dutt. A hard fight ensues, and Aditya defeats Tara Dutt, rescuing Sanjana's soul in the process. Back in the real world, Shanaya suffers physical damage as a result of the fight between Tara Dutt and Aditya and attempts to kill Aditya and Sanjana, only to meet failure. Aditya protects Sanjana from the defeated Shanaya, who vows that she will forever remain a star and commits suicide by pouring acid on her head. Later, the media lets Sanjana off the hook as they conclude her 'publicity stunt' was a result of a nervous breakdown she had due to stress.