An adaptation of Agatha Christie’s And Then There Were None, this suspense thriller tells a twisted story of crime and intrigue. Seth Sohanlal stumbles out of Hotel Metropole in an inebriated state. A mysterious man signals a car which promptly runs him over. The man telephones a number of people to reveal that their plan went smoothly. He also informs Sohanlal’s niece Asha of his death. But as he is speaking with Asha, a mysterious assailant shoots and kills him.
Sometime later, Asha wins a raffle at a club which rewards her and six others with a holiday trip. The other six are – Kishan, Dharamdas, Madhusudan Sharma, Dr. Acharya, Kitty Kelly and Barrister Rakesh. As they are travelling, the plane’s engine develops a defect and they are forced to land on an island. But as soon they disembark with the flight attendant Anand, the plane flies off without them. The eight of them are left stranded on an unknown island. After hours of wandering around the island they hear a mysterious voice singing which leads them to a mansion. When they enter the mansion they are welcomed by a butler who says that everything has been arranged for their hospitality. Their relief is short-lived though – as an anonymous letter declares that all of them have been brought there to deliver justice for a crime they were all involved in.
It is soon pretty clear that no one is who they seem they are on this island. Everyone has a hidden agenda, including Anand and the butler. Amidst all the suspicion and doubt, Asha finds support in Anand and the two start becoming close. Barrister Rakesh lusts after Kitty and spends all his time trying to get her drunk. Fate soon puts all their frolicking to an end when Kishan’s dead body is discovered. The unknown killer left a note by Kishan’s body claiming Kishan was the man who run Seth Sohanlal over with his car. Soon it is learned that all of them were connected to Seth Sohanlal’s business in some manner. The dominoes keep falling, as the lives of Madhusudan Sharma, Dharamdas and Dr. Acharya are also lost. All the murders are accompanied with notes detailing their involvement in Seth Sohanlal’s murder. The last of them – Dr. Acharya- collapses in front of Asha and Kitty with Anand’s name on his lips. Asha begins to doubt Anand’s intentions.
Barrister Rakesh is convinced that Anand is the real killer. When Kitty goes out to take a swim, the mysterious assailant chases her through the forest. Later her corpse is found hanging from a tree. Driven mad with rage, Barrister Rakesh attempts to rape Asha. She manages to free herself from his clutches. When she runs into Rakesh again he has two daggers sticking out of his chest. Asha faints in fear as the lights of the mansion go off. The killer arrives and carries Asha off. But Anand arrives in the nick of time to stop him. Anand reveals that he is actually an undercover CID agent, investigating the mysterious circumstances of Sohanlal’s death. The real identity of the killer comes to light and they are brought to justice by Anand and Asha.