The film was released in India on 24 December 1965 and stars an ensemble cast of Manoj Kumar, Nanda, Mehmood, Pran, Helen, Madan Puri, Tarun Bose, Dhumal and Manmohan.

[1][2] On a dark night, wealthy Seth Sohanlal, stepping drunkenly out of a hotel, is run down by a speeding car and dies on the spot.

A room overlooking the hotel is occupied by Khanna (Hiralal), Seth Sohanlal's murderer, who gives a bundle of banknotes to the unseen driver of the car arriving shortly after.

As Asha screams in anguish, she hears some gunshots at the other end of the line as an unseen intruder in a long coat and hat has entered Khanna's room and shot him to death.

A few days later, it is announced at a nightclub that the seven winners (five men and two girls) of a "lucky draw" have won a free fortnight-long trip to an unspecified destination abroad and will be going in a chartered airplane.

These fortunate people are Barrister Rakesh (Pran), Dharamdas (Dhumal), Kishan (Manmohan), Kitty Kelly (Helen), Dr. Acharya (Madan Puri), Madhusudan Sharma (Tarun Bose), and finally, Asha, who now seems more composed.

Moreover, everyone discovers that the butler has a diary which, besides containing an account of daily expense, also contains a message addressed to the entire group, accusing each of these people of having conspired to kill Seth Sohanlal and passing a death sentence on them.

While Rakesh and Kitty fall in love and Anand begins flirting with Asha, the butler's suspicious actions indicate the presence of an unknown person in the mansion.

Just then, Anand appears at the scene and reveals that he is actually an undercover police inspector on the mission to capture Sharma, an escaped convict whose real name is Madanlal.

He then ensured that his targets "won" the lucky draw held at the nightclub and took the trip in order to murder Khanna's remaining five assistants too.