It seems you are looking for the story of the classic Hindi movie Har Raat Naya Saudagar (1969), possibly because you searched for "free" streaming but want to know the plot first.
Cast: The film stars Anil Nagrath, Ali Khan, Rakhi Bajaj, Zubir Khan, Pavan Kumar, Dimple Sewak, and Pooja Shetty. hindi movie har raat naya saudagar free
Title: The Merchant of Virtue: A Critical Overview of Har Raat Naya Saudagar It seems you are looking for the story
Vikram picked up the key. It felt cold—heavy with the weight of someone’s doom. "You know my rule, Maya. Tonight, this key is the trade. By tomorrow, it’s just scrap metal. Who is looking for it?" "The Commissioner," she said. It felt cold—heavy with the weight of someone’s doom
The National Museum of Indian Cinema (NMIC) in Mumbai occasionally holds free screening festivals for "lost films." If you live in or visit Mumbai, check their schedule for retrospectives of 1970s cinema. Har Raat Naya Saudagar is a prime candidate for such an event.
In India, copyright generally lasts for 60 years after the creator's death. If the director or music composer passed away before 1964, the film might be entering the public domain in some regions. However, proving this for an obscure film is difficult. If it is public domain, watching it for free is legal.