[1] The film opens with the strong leadership of trade unionist, who works hard to enhance the lives of struggling labourers.

The trade unionist, however, is blackmailed by a corrupt businessman who threatens to kill his family if he does not cease his activities.

His family is also persecuted by the angry workers who brand young Raja's arm with the words: "My Father Is A Thief."

Not knowing what else to do, Seetha brings her children to Madras and struggles as a day labourer to care for her now homeless boys.

In the process of fighting for his rights, Raja, who starts out as a boot polisher and becomes a dockyard worker in his youth, becomes a smuggler and a leading figure of the underworld.

When Anita becomes pregnant, Raja decides to abandon his life in the underworld, marry her, and confess his sins.