CBI 5: The Brain (2022) Timeline Explained – Every Event in Order

Abdul Samad was killed because he was a liability to the conspiracy. Sam (Sathyan) and I.G. Unnithan ordered Meyjo to kill Samad as part of a broader plot to eliminate Susan, who was actually Ambika Unnithan, Unnithan's estranged wife. Samad's death was orchestrated to appear natural while covering up the real target, Susan.

Foreshadowing: Early in the film, Samad's death is initially thought to be natural causes, but the protests led by journalist Bhasuran suggest something more sinister.

• abdul samad murder
• political killing
• basket killings

The basket killings were ordered by Sam (Sathyan) and I.G. Unnithan. Unnithan, who was paranoid and suspected his wife Susan of abuse, wanted her silenced. Sam was also involved and used Meyjo as the hitman to carry out the murders of Samad, Dr. Venu, journalist Bhasuran, and police officer Josemon.

Foreshadowing: The film hints early on that the killings are connected to a political conspiracy rather than random murders.

• sam
• unithian
• basket killings order
• conspiracy

Susan George, treated by Dr. Venu, is actually Ambika Unnithan, the estranged wife of I.G. Unnithan. Iyer discovers this when a torn newspaper clipping in Meyjo's Bible reveals her true identity. Unnithan wanted her dead because of his paranoia and suspected infidelity, making her the real target of the entire murder conspiracy.

Foreshadowing: Dr. Venu's patient Susan is mentioned early as someone connected to the medical thread, but her true identity is revealed later through the newspaper clipping.

• susan ambika
• ambika unithan
• susan identity

Meyjo, also known as Paul Meyjo or Sandeep, is the main hitman hired by Sam and Unnithan to carry out the basket killings. He murdered Abdul Samad, Dr. Venu, journalist Bhasuran, and police officer Josemon on their orders. He also designed pacemaker hacking technology to prove a point about medical device vulnerabilities, though this was mainly used as cover for his crimes.

Foreshadowing: Meyjo is introduced through CCTV footage at Delhi Airport connected to DYSP Vikram, establishing him as a key figure early.

• meyjo killer
• paul meyjo
• sandeep murderer

I.G. Unnithan is arrested after Iyer finds the newspaper clipping confirming Unnithan met with Meyjo to plan Susan's murder. However, Unnithan dies of a heart attack during the trial before justice can be fully served, creating a mixed ending where the mastermind escapes full punishment.

Foreshadowing: Unnithan's paranoia and controlling behavior toward Susan is established early, hinting at his deeper involvement.

• unithan arrested
• unithan death
• heart attack trial

Meyjo designed and claimed to have created technology that could hack pacemakers, potentially killing anyone with such a device. He used this to create fear and as a potential murder method. However, when questioned, he stated it was meant to prove a point about medical device vulnerability. Authorities couldn't prove he actually used this method, leading to his temporary release due to lack of evidence.

Foreshadowing: Meyjo's pacemaker notes are found early, establishing the medical device threat as a plot element.

• pacemaker hack
• medical device
• meyjo technology

Josemon was killed in a hit-and-run incident because he was getting too close to uncovering the conspiracy. As a police officer investigating the case, he represented a threat to Sam and Unnithan's plans, making him a target to silence the investigation.

Foreshadowing: Josemon's routine morning walks are mentioned early, establishing his character before his murder.

• josemon murder
• police officer killed
• hit and run

Journalist Bhasuran was murdered by hanging because he was leading protests demanding a full investigation into Abdul Samad's suspicious death. His pursuit of the truth made him a threat to the conspirators, so Meyjo was ordered to kill him to silence the media pressure.

Foreshadowing: Bhasuran's protests demanding investigation are shown early, directly linking his activism to his murder.

• bhasuran killed
• journalist murder
• protests

Dr. Venu was killed because he was treating Susan and was beginning to uncover Meyjo's true intentions. As the only person who could connect Susan to the conspiracy and reveal Meyjo's plans, he became a liability and was eliminated on the conspirators' orders.

Foreshadowing: Dr. Venu's suspicious death follows Samad's, creating the initial medical thread that Iyer follows.

• dr venu murdered
• doctor death
• conspiracy

In the final scene, Meyjo warns Iyer from prison that he is Meyjo's next target. Iyer remains confident, mentioning Vikram and walking away, but the ending leaves a chilling unresolved threat, while the immediate case is closed, the danger to Iyer personally remains present.

Foreshadowing: Meyjo's capture near the beach and his ominous personality are established before this final confrontation.

• iyer target
• meyjo threat
• ending sequel

Mansoor is a relative of Abdul Samad who joined a militant group years earlier. The police initially suspect Mansoor to be the shadowy name behind the killings, but this proves to be a false lead. Mansoor was used as a cover to misdirect the investigation away from the real conspirators, Sam and Unnithan.

Foreshadowing: The name Mansoor is introduced early as the suspected mastermind, creating initial confusion.

• mansoor militant
• false lead
• conspiracy cover

DYSP Sathyadas is a corrupt police officer who openly distrusts the CBI and specifically dislikes Sethurama Iyer. He is initially given the case but obstructs the investigation. His wife Adv. Prathibha Sathyadas appears to have conflicting motives, leading a petition to transfer the case to CBI while also being connected to Sam's circle.

Foreshadowing: Sathyadas' opposition to Iyer is established early, creating an obstacle in the investigation.

• sathyadas corrupt
• police politics
• cbi opposition