On a rainy night, Sumit Ghoshal, a taxi driver arrives at a police station with a passenger who has suddenly taken ill. The O.C. inspects the passenger to find him dead. ACP-DD Shabor Dasgupta and Inspector Nanda must solve the case.
A taxi driver, Sumit comes at Bhowanipur Police Station with an unwell person on a rainy night. The officer-in-charge inspects the person and found him dead which makes Sumit the prime suspect.