Ravi Rajput comes from a poor family, his father was a foreman at a mill, and could not afford to send Ravi to a private school. Ravi studied in Municipal school, got a job in a mill, got married to Saru, who subsequently gave birth to their son, Gaurav. The proud parents watch as Gaurav grows up, starting walking, talking, and feigning illness just to stay home and watch World Cup Cricket. Then their lives are turned upside down when Gaurav faints while playing cricket, they take him to the nearest hospital in Bandra, where Doctors Nita and Sen inform them that their son is dying until and unless he receives a heart transplant, the cost of which is 15 lakhs rupees. A heart is available for transplant but the hospital will perform the surgery after they receive the money in advance. A desperate Ravi turns to his insurance company, which declines to renew his policy; his employer, with whom he has worked for over 11 years, can only sanction Rs.75000/-. When nothing works out and Dr. Sen informs that his son will soon be discharged, Ravi gets a gun, holds 30 people hostage in the hospital until his son gets the necessary surgery. DCP Rane is assigned to this matter and his orders are to kill Ravi and end this drama. But Ravi persists and finally he is told that Gaurav will soon be operated upon. Relieved, Ravi decides to let go of all the hostages, and it is then that he finds out that a surgery is taking place - but not of his son, but of an elderly politician, the President of the ruling political party, Narayan Swami. Watch what impact this news has on Ravi and to what extent he will go to to ensure his son's survival.
After the accidental death of her lover, Mitali gets married to wealthy widower Ranbeer Singh who lives in a palace in Rajasthan, India, along with his daughter, Sapna. The trio settle down in a harmonious relationship until Sapna re-locates abroad. When she returns she is introduced to wealthy Rajvir Singh, who also lives in a palace with his brother, Sumer, and Bhabi, Smita. During a trip to Goa, both Rajvir and Sapna fall in love with each other. Smita and Sumer welcome this news but Mitali has a secret to share with Sapna - that she and Rajvir had a steamy affair not too long ago. Watch what impact this has on Sapna, Ranbeer and the rest of Rajvir's family.
London-based Rai family consists of Suraj, his wife, Radha, and two children, a boy and a girl named Neetu, as well as Suraj's younger brother Raj. When Suraj's son passes away, he gets very depressed, takes to alcohol, and gets intimate with a young woman named Kamini, who is an ardent worshiper of Lord Shani (Saturn), and he promises to marry her. When he decides that he likes Radha and Neetu more, he decides to break up with Kamini, who does not take it too well, and kills herself. Suraj returns to his family and does not tell anyone about this incident. Then strange things start occurring in the household, and Suraj blames these on Raj. But this only worsens the situation, and the family, including Raj's voluptuous girlfriend, Sapna, re-locate to Balwant's house. This is where they will find out that the vengeful spirit of Kamini has entrapped them, and they are all to suffer violent deaths - especially on dates that total to eight in combination with Saturday.