On the occasion of his 100th birthday, Ranjeet Dobriyal, a wealthy billionaire, hosts an opulent celebration aboard a luxurious cruise ship. The event is attended by an array of important guests, including his son Dev and his adopted son Shiraz, along with his loyal bodyguard Batuk. Also present are the ship’s captain Sameer, the firm CFO Maya, the shrewd COO Bedi, and various other guests, all gathered to honor the centenarian amidst lavish decorations and festivities. As the ship begins its voyage, the atmosphere is vibrant and lively, but everything takes a dramatic turn when Ranjeet suddenly collapses and dies of a heart attack during the event.
Fearing that the news of Ranjeet’s demise might cause a catastrophic drop in the Ranjeet Group’s stock and reputation, Dev and the board of directors decide to keep his death a secret temporarily. However, the plot thickens when Ranjeet’s lawyer, Lucy—who is also present—activates Ranjeet’s holographic will. This advanced and unusual document reveals a shocking fact: Ranjeet has left his entire £69 billion fortune specifically to his first wife, Shakuntala Devi, and thus, to his son Jolly. This revelation raises suspicions and curiosity, especially as the will contains bizarre clues that hint at Jolly’s real identity, which remain unclear and cryptic.
Before long, three different men—Jalabuddin, Jalbushan, and Julius—arrive at the scene, each accompanied by their respective wives. All three claim to be Jolly, asserting they are the legitimate heir, providing identical proof to back their claims. The chaos escalates as it becomes impossible to determine who the true heir is. In the absence of a clear answer, Dev suggests conducting a DNA test to identify the real Jolly. Simultaneously, comedic chaos ensues when the ship’s clown, Aakhri Pasta, attempts to drug Batuk by spiking his drink. However, due to a mix-up, the drug-laced beverage is poured into the shared punch bowl, causing everyone on board to lose consciousness.
When the guests wake up the next morning, they find themselves in confusing situations—each man in the wrong cabin, with the wrong wife, and with no memory of the previous night’s events. Matters worsen when the doctor tasked with performing the DNA test is discovered murdered, intensifying the suspicion among everyone present. The trio of Jolly impostors and their wives are then locked in the ship's jail to await the arrival of Interpol, which is called in to assist with the case.
As the story unfolds, the three men confess to each other that they are all impostors, and none of their wives are truly their own. They hatch a plan to escape, with the women crawling through air vents to destroy possible DNA evidence. During their clandestine endeavors in the ship’s lab—turned morgue, they notice Bedi acting suspiciously. His furtive movements and secretive glances raise suspicion, leading the women to believe he might be the real murderer. They secretly record his behavior, convinced that his calm, composed exterior could be hiding a dark secret.
The mounting suspicion against Bedi causes paranoia and mistrust to spread among the group, fueling fears and doubts all over the ship. Bedi’s responses to questions remain ambiguous, further casting doubt on his loyalty and motives. Meanwhile, the impostors’ failed attempt to hide Ranjeet’s body results in Bedi’s corpse being hidden instead, complicating the investigation further.
Baba and Bhiddu, two police officers recently suspended from London’s force, arrive on the scene intending to solve the murder and regain their job positions. They find clues pointing towards the identity of the true killer, but their investigation hits a snag when Captain Sameer is murdered. Subsequently, Baba and Bhiddu are imprisoned on false charges. The Interpol officer Daghdu then arrives, sharing relevant investigation files with the suspects and promising to uncover the killer the following day. However, that night, the situation turns deadly again when an masked attacker stabs and wounds Daghdu, further deepening the mystery.
The film features two alternate endings, each revealing a different killer. In one version, Dev is exposed as the mastermind behind the inheritance deception, having hired Jalbushan to impersonate Jolly. In the alternate ending, Maya, the CFO, is uncovered as the true schemer orchestrating the entire plot. It is also revealed that Bedi was killed by one of the killers, further complicating the case. Amidst the chaos, the real Jolly finally arrives, shocking everyone by simply declaring he does not want the fortune share and choosing to walk away from his inheritance, leaving the entire intrigue unresolved in a surprising twist.
