Vishwasghat is a film about the results of crime penetrating down the generations and leading naturally to a lot of wastage at the physical level. Saroj and her husband who is more commonly referred to as King have a son Mahesh who comes back to the country on completion of his studies. He is accompanied by his fiance Seema who runs a school for handicapped children. King is a successful businessman, but he is more successful as a gold smuggler. The reason he cites for joining the illegal business is better living conditions for his family.
Mahesh who reveres his father blindly is not aware of the latter's illegal involvements. Now that King has become the number one smuggler in the gold world, his close rival cannot rest in peace and decides to acquire that status. When he finds that his enemy supersedes him in strength, his son suggests using dubious means to achieve the desired goal. The plan is to target King's son Mahesh and thereby blackmail King. Saroj, Mahesh's mother getting wind of matters advises her husband against any more encounters with the enemy. She fears not just his life, but also that of her son's. King however, is adamant. In the meanwhile Seema realising her husband's dependence on his father cajoles him to look for a job of his own. Mahesh obliges.
As per their plan the enemy headed by the son invite Mahesh to a meeting where they expose his father's activities. Mahesh is disillusioned beyond repair and he doesn’t return home any more. He takes up a flat with his finace Seema and both of them soon tie the knot. Saroj is heartbroken at her son's decision. She forces her husband to call for truce with the enemy. He agrees and the parents call up the son on King's birthday to make this confession. Mahesh agrees to reconcile with his father and also announces Seema's status of expecting a baby.
In keeping with his promise King calls for a peace bid with the enemy. The two warring parties meet at a certain point but the enemy is in no mood for a peaceful reconciliation. Firing of gun shots ensues and there is a bitter struggle between the two parties. King gets killed in the process. It is now Mahesh's turn to end the war that his father has begun. There is blood bath on both the sides but finally Mahesh succeeds in overpowering the opponents and pulling down the curtains on this front.