'Dushman Duniya Ka' is a thought-provoking and family-oriented drama that revolves around the deadly consequences of illegal drug use in Indian families.
Mahesh is a honest and diligent young man, who has no knowledge of his background as he was raised in an orphanage. One day he meets Reshma, who is also an orphan, and both fall in love and get married. They live a harmonious life, and soon are proud parents of a healthy young boy who they name, Lucky.
Lucky grows up to be as honest and diligent as his father, and his future appears to be very bright. Lucky has a childhood sweetheart in Lata, and both plan to marry soon with the blessings of their respective parents. Then Mahesh's world is turned upside down when he finds drugs in Lucky's pocket. He speaks to Lucky about this, and Lucky promises to give up drugs forever, and does live up to his promise.
While driving home one day, Mahesh witnesses a drug peddler selling drugs to a group of youth, which also includes his beloved son, Lucky. He notifies the police, and they arrest the youngsters, but the peddler manages to escape. All the other youth tested positive for drugs, except for Lucky.
When he returns home, his parents refuse to believe him, this angers him and he and his father come close to fisticuffs. Mahesh asks Lucky to leave, and he does so. Even Lata will have nothing to do with him. Lucky regresses to drugs and his friends, until he runs out of money. Now he must either steal or even consider killing someone for money, and the only ones he can think of burglarising are his parents. What will happen to Lucky? Will his life be spent in the dark oblivion of drug intoxication or is redemption on the cards?