"The Chief labour officer of a private steel company in Barrackpur senses corruption in the management. An idealist he resigns and is murdered. The secretary of the trade union, Probir gets to know of it and is murdered. His comrade Bijan manages to escape and absconds. Nirupama, the sister, who silently cherishes Bijan, along with Sandipan, a reporter, tracks down the hired gang of killers, whic