Maya and Arnab are a middle class couple who stay with Arnavs younger brother Rithwik and Arnavs grandmother Sudha. Its a normal happy family. Its Rithwicks birthday and Arnav decides to celebrate his birthday in a party at a small resort. At the resort, as the preparations of the party are going on, Maya is looking after the arrangements when she suddenly notices that Rithwick is having a verbal fight with a young woman. She seems to be threatening him and Rithwick almost raises his hand at her and Maya has to intervene. The girl went away and Maya asked him that why was he fighting with her. Rithwick told her that it was nothing- just a friend he had invited to his birthday party. But later, in the night, Maya witnesses the same girl killing Rithwick through a peephole. But she is stunned when she finds Rithwick alive. Everyone thinks she is crazy and mentally ill but she is sure she has seen a murder and she runs to CID for help. As the cops follow the case, they realize that a murder has happened indeed , even though not of Rithwick. Cops get down to finding who is driving Maya insane and why.
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.