Musical love story and murder mystery repeating the star pairing of the hit Dil Deke Dekho (1959) as well as its locales, the hill- station and the hotel dance-floor. Sunita (Parekh) goes to Mussoorie with her college hockey team. She is also determined to avenge the death of her sister Rupa, who had apparently committed suicide when she was rejected by her lover Rocky (Kapoor), a drummer in the hotel’s jazz band. Rocky meets her and, wise to her intentions, disguises his identity. The two fall in love. The story picks up again when a policeman (Iftekhar) reveals that Rupa was murdered. The dancer Ruby (Helen), who is in love with Rocky, and Rupa’s jealous fiance (Chopra) are prime suspects. In the end, a subplot is quickly developed and the murderer caught. The film included classic Mohammed Rafi and Asha Bhosle duets such as O hasina zulfonwali, Aaja aaja, O mere sona re sona re and the quixotic Rafi solo, Diwana mujhsa nahin, energetically picturised on the ageing but lively lead duo.