Plot

Raghavan Ghatge, a psychotic terrorist, and Manu Verma, the cop who tracks him down, shoot each other simultaneously, the result being that Raghavan's soul is transferred into Verma's body and vice versa.

The conflict of good and evil is deeply entrenched in the Indian psyche and takes many forms.The film explores the ancient indian philosophy that the ultimate battlefield for good and evil is nothing but a human being's body and the ultimate prize:his soul."Aks" is a modernistic rendition of this ancient conflict of good and evil.While it takes the form of an avant-garde psychological thriller,it is just a structure to explore this timeless philosophy.

Aks is the story of a hunter and his prey. A cop and a killer. Aks is the story of Manu Verma and Raghuvan. The story begins in the heart of Budapest. The Indian Defence minister is on a routine foreign visit. He reveals the true details of his diplomatic trip to his head of Security Manu Verma by informing him about the floppy which has valuable information that could affect the very destiny of the nation. On the other hand Intelligence sources have revealed to Manu Verma that a lone assassin long feared for his ruthlessness has been paid to eliminate the Defence minister. The shadowy figure is called Raguhvan, Manu Verma reaches the Indian Defence Minister just moments too late to save him and finds the statesman in a pool of blood Raguhvan has struck and vanished into thin air. Now the hunter becomes the hunted as Manu Verma tries to find Raghuvan. When he does find him something unexpected happens, which changes both Manu and Raguhvan forever.—annonymous

The Indian Defence Minister is in the heart of Budapest on a friendly foreign visit. There is however a hidden agenda behind the smiles and handshakes. A floppy that has information that could affect the destiny of the Indian nation. Manu Verma, the head of the Minister's security is informed that an assassin, Raghavan is out to eliminate the Minister. Before the evening is through, Raghavan strikes and vanishes into thin air - and the floppy too. Verma becomes a man obsessed with capturing Raghavan.—annonymous

After the assasination of the Indian Defence Minister, the authorities decide to launch a manhunt for the killer, and assign this case to Inspector Manu Verma. Manu's investigation results in the arrest of a man named Raghavan, who is found guilty, and sentenced to be hanged until death. Quoting wilding from the Holy Bhagvad Geeta, Raghavan is hanged, and Manu returns to his job, his wife and his young daughter. And then Justice Balwant Chaudhry is killed in the same manner Raghavan had killed when he was alive. Before the police could recover, there is another death. This time Inspector Arjun is certain that the killings are done by a person who is copying Raghavan. And the evidence of these killings leads Arjun to none other than Inspector Manu Verma.—rAjOo (gunwanti@hotmail.com)

Aks is a supernatural thriller centering on two characters - Manu Verma (Amitabh Bachchan), the cop, and Raghavan (Manoj Bajpayee), the shadowy killer.

The story begins in the heart of Budapest. The Indian Defence minister (Amol Palekar) is on a routine foreign visit. He reveals the true details of his diplomatic trip to his head of Security Manu Verma by informing him about the floppy which has valuable information that could affect the very destiny of the nation. The Minister claims that an organization is behind all the high profile heads of state assassinations In SEA (including Indira and Rajiv Gandhi). The same org plans to eliminate the current Indian PM and the Minister is in Budapest to collect proof against it (in the floppy disk).

On the other hand Intelligence sources have revealed to Manu Verma that a lone assassin long feared for his ruthlessness has been paid to eliminate the Defence minister. The shadowy figure is called Raguhvan, Manu Verma reaches the Indian Defence Minister just moments too late to save him and finds the statesman in a pool of blood Raguhvan has struck and vanished into thin air with the floppy disk. Now the hunter becomes the hunted as Manu Verma tries to find Raghuvan.

Supriya Verma (Nandita Das) is Manu's wife. Neeta (Raveena Tandon) is a bar dancer and Raghavan's mistress. Mahadevan (K K Raina) is Raghavan's demented brother, who is also a talented artist and creates latex masks for Raghavan, which he uses to conduct his murders. Manu gets a tip from an informant and is able to track down Raghavan, along with Mahadevan and Neeta. Raghavan is caught and, as he is about to be executed by hanging, his spirit goes into Manu Verma's body and starts to manipulate the cop into performing acts that Raghavan wanted to perform.

Raghavan's spirit kills the informant, while he is in police custody. Manu does emerge from Raghavan's spirit's shadows & is perhaps aware of not being in control of his actions, but is not able to voice them properly to anyone, including his wife Supriya. But gradually Raghavan's spirit takes more and more control of Manu's body. Raghavan's spirit is able to convince Mahadevan and then Neeta that he is stuck inside Manu's body. He vows to complete his mission to eliminate the Indian PM. He starts by eliminating the judge who sentenced Raghavan to death.

ACP Arjun Srivastava is Manu's deputy and is investigating all these deaths. He finds the same footprints near the scenes of all crimes & is intrigued. Raghavan's spirit even sexually assaults Supriya. Manu admits his helplessness to Supriya, who believes him. Supriya takes Manu to meet her spiritual guru who identifies the soul inside Manu's body. He advises Manu that he can fight and expel the external soul on an eclipse, at which time it will be at its weakest.

Manu decides to take the fight to Raghavan and visits his house where Neeta and Mahadevan are staying. Neeta informs Manu (Thinking he is Raghavan), that she is pregnant. Arjun Arivastava and Supriya reach there at the same time. Arjun asks Manu to surrender himself. Mahadevan attacks Arjun who shoots Neeta by mistake and she dies. Raghavan resurfaces in Manu's body & is devastated to find Neeta dead. He decides to sacrifice Supriya and her daughter to avenge Neeta's death. Arjun arrives with Mahadevan and finds that Raghavan has occupied Manu's body & is threatening his family. Just then an eclipse strikes and Manu fights back. He is able to eject Raghavan from his body, who goes into Mahadevan's body. Manu shoots Mahadevan and everyone thinks that's the end of Raghavan.

Eventually, Raghavan's spirit leaves Manu's body. Everything seems to be normal. Manu & his family go on vacation. Unfortunately, Raghavan's spirit is still alive inside Arjun's body