Ramakanta is a businessman whose wife Lata dies under mysterious circumstances. Lata had adopted Rita, the daughter of Mamata, as she was childless. Lata writes a letter to Mamata before her death and Mamata comes to probe her death and prove that Ramakanta was behind it. Tapas Roy, an investigative officer joins Ramakanta’s office. Police are suspicious that Ramakanta deals in drugs. Ramakanta owns a deserted fort that is haunted and a mysterious woman figure is seen roaming there and singing. Mamata reaches Ramakanta’s town with her other daughter Sarama, Rita’s twin. Several twists and turns reveal that Ramakanta killed Lata and carried illegal business from the deserted mansion. Sarama gets killed by Ramakanta. But the police finally managed to catch him.
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