S1·E435 Poisonous Relationship

Episode recap

In season one, episode four hundred thirty-five of C.I.D., titled Poisonous Relationship, a man named Karan has been suffering from stomach pain for the past two months. Karan shares this medical issue with his friend, Rahul. Upon learning about the prolonged and painful condition, Rahul suspects that Karan is suffering from food poisoning. This suspicion shifts their attention directly toward Karan's wife, Suman. Suman is professionally employed at a medical research centre that specializes in poison. The situation raises immediate questions about whether Suman has been using her workplace knowledge and access to administer poison to Karan over the two-month period. Viewers are left to follow the investigation to find out if Suman is indeed responsible for her husband's ongoing illness or if another explanation exists. The synopsis provides the setup for this mystery, focusing on Karan's symptoms, Rahul's suspicion, and Suman's occupation at the poison research centre as the central elements of the episode's plot.