A renowned gynecologist, Dr. Mrityunjoy Mukherjee, and his wife Sona are overjoyed by Sona's pregnancy, but their happiness is short-lived. Joy is arrested for the murders of unmarried pregnant women, with evidence and corpses found hidden in his home. Despite his protests of innocence, no lawyer is willing to take his case until Sona contacts a top lawyer, Rastogi, who is currently unable to attend the hearings due to a heart attack. As Sona tries to clear Joy's name, she becomes convinced that he is being framed by Inspector Shaid Imran, her ex-boyfriend seeking revenge. To prove Joy's innocence and catch the real killer, Sona decides to replicate the killer's modus operandi by kidnapping an unmarried pregnant woman, Anushka.

Mrs. Serial Killer
A wife's desperation to clear her husband's name leads her to orchestrate a crime identical to the ones he's accused of, blurring the lines between justice and vengeance in a gripping exploration of love, loyalty, and the human condition.