Dhruv , a young man is shot dead by his friend Ajay in the parking lot of his office. Ajay apologizes after he pricks him with a poison pin, saying that he is sorry but he will have to kill him. Ajay shoots himself dead after pricking Dhruv. They both die. Similar murders and suicides by killers immediately after the murders rock the city. CID gets on the case and they find out that in all the cases, the loved ones of the killers were kidnapped and they were forced to commit the murders by somebody else, holding the loved ones hostage. The cops need to find out who the person is and why is he making people commit murders of their friends and then commit suicides? Investigation reveals that all the victims were connected to each-other as they all had stayed at a resort in Shimla a few months ago. The seed of this entire chain lies in that Shimla resort. The cops head to Shimla and they find that an incident involving all the victims has triggered this spate of murders and they have to find out who was affected by the incident enough to take such a revenge.
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.