Insaan (1982)

Shankar is a self-starter who is scorned and expelled from the family by his virago stepmother. However, he well-earns with his hard work and lives buoyant with his wife Sona and a child Munna. By this time, his heinous stepbrothers Narendra Singh, Roop, & Pardhu spoil their share. So, they plot to grab Shankar's property and heir a malign Sher Singh to eliminate him, and he announces him as dead. Knowing it, Sona attempts suicide when she is rescued by an altruistic Ravi. At last, Shankar & Ravi cease them when Ravi is severely injured while guarding Munna. Finally, the movie ends with Ravi leaving his breath reuniting Shankar & Sona.