Khamosh (1985)

Soni Razdan is a budding actress. Shah is a military man. Amol Palekar is an established actor. Shabana Azmi is a fellow actresS. Ajit Vachani is a film producer and Pankaj Kapoor is his mentally unstable brother. Sushma Seth plays Mrs. Bhal, a retired actress now doing character roles and pushing her reluctant daughter into the film industry to obtain fame and fortune.

The filming unit enters Pahalgam in Kashmir for their next film. Razdan mysteriously commits suicide. The police are about to call it an open and shut case when Shah enters the scene. He pretends to be a special officer sent to investigate the case, but his cover is blown. The police come to arrest him just as he about to accuse Mrs Bhal of Razdan's murder as he had found Razdan's missing earring hidden under Mrs Bhal's mattress in her hotel room. Shah then reveals his true identity as Razdan's estranged brother and states that some days before the "suicide", Razdan had sent him a letter that she had gotten the lead role for a prestigious project. As such, he refuses to believe that she committed suicide. The crew accept that Razdan had indeed got the coveted role, but they are less enthusiastic about co-operating now with the police and investigation of her murder.

The only person who believes that Razdan was murdered is Azmi, who heard Razdan practising her lines until late at night. Azmi realises that Razdan was portraying a village girl who spoke no English, but that she had started shouting something in English before she became silent. She agrees to help Shah catch the culprit, and they join forces but more murders happen - first with Mrs Bhal, then the male housekeeper.

Eventually, all clues point to Vachchani, who confesses that his brother Kapoor killed Razdan in a rage when she spurned his advances. Vachchani confesses that he was just covering for him, because his brother was mentally ill. Kapoor goes on a shooting spree, killing Vachchani in the process. It seems like the mystery has been solved but Shah realizes two things : 1] Kapoor's revolver had already been emptied before he "shot" his brother dead. 2] Vachchani had posted a mysterious letter to his lawyer.

Azmi knows where the actual gun used to kill Vachchani is but finds it missing from the props and costumes box. But as she is leaving, the actual killer comes and puts the gun back. It is then revealed who is the real killer. This also gets revealed to Shah when he reads Vachchani's letter to his lawyer, which was his confession.......

It reveals that Amol Palekar is the killer. Soni was in relationship with him and got pregnant. He wanted to breakup but she threatened to expose him. So he kills her. Vachchani saw it and blackmailed Amol. While putting soni's corpse on tree, Mrs Bhal saw Vachchani. Thus Amol ends up killing them. Amol confesses this to Shabana ands wants to kill her too. Just then Shah enters and shoots and kills Amol.