A trekker group finds a girls hand coming out of ground. They call CID and after digging that place they find a girls dead body with a bouquet kept with. CID finds card of Twinkle flower shop in that bouquet. Worker of that shop leads CID to an abandoned factory, Mangalam glass factory where he was ordered to put that bouquet. From the dead body of girl CID finds some traces of limestone which makes sure that this death has some link to Mangalam glass factory. CID starts searching that factory and finds another dead body and a medicine bottle with syringes. At the mean time, Killer comes there and sets factory at fire. Cid gets trapped but they manage to escape. Upon Interrogation Companys owner, Anil refuses to know anything about these deaths or grave in backyard of factory. After digging that grave CID finds out that body has been removed and there they get a suicide letter of a girl named Tiya. They analyze that letter and find a partly written mobile number. They try all the permutation and combination of that mobile number. They call one number and a girl asks them for help as she is under attack. Before that girl can say anything killer comes and mobile is switched off. Killer kills that girl and walks away. From mobile operator CID gets to know address of this mobile number. They reach there to find that all the dead girls were room partners. They find tie pin of Anil lying in this room. Anil has misguided them all along. They go to his house but he has left with his son Sushil. CID alerts police checks and nabs Anil. Cid gets to know the story. Tiya was Sushils girlfriend. Her roommates have got compromising pictures of Tiya and Sushil. They started blackmailing Tiya which led her to suicide. Sushil lost his mind and decided to take the revenge. He killed Tiyas roommates one by one with the same medicine Tiya has ended her life.
The first thrilling investigative series on Indian Television, is today one of the most popular shows on Sony Entertainment Television. Dramatic and absolutely unpredictable, C.I.D. has captivated viewers over the last eleven years and continues to keep audiences glued to their television sets with its thrilling plots and excitement. Also interwoven in its fast paced plots are the personal challenges that the C.I.D. team faces with non-stop adventure, tremendous pressure and risk, all in the name of duty.The series consists of hard-core police procedural stories dealing with investigation, detection and suspense. The protagonists of the serial are an elite group of police officers belonging to the Crime Investigation Department of the police force, led by ACP Pradyuman [played by the dynamic Shivaji Satam]. While the stories are plausible, there is an emphasis on dramatic plotting and technical complexities faced by the police. At every stage, the plot throws up intriguing twists and turns keeping the officers on the move as they track criminals, led by the smallest of clues.