After 25 years in solitary confinement, former serial killer Mrs. Deshpande offers to help catch a copycat mimicking her crimes.
She begins the investigation on the strict condition that she only works with her estranged detective son.
The duo hunts for clues in a new crime scene while navigating their fractured personal relationship.
Secrets from the original murders emerge, casting doubt on whether the copycat is working alone.
As the police grow suspicious of her motives, Mrs. Deshpande takes a dangerous risk to lure the killer out.
The series reaches a climax as the final truth about the copycat's identity and the past is revealed.
