Nenjil Oor Aalayam 1962

Murali and Seetha are lovers. He goes abroad to pursue higher studies in medicine. During his tenure overseas, Seetha’s parents force her to marry another man. Devastated by this news, he vows lifelong celibacy and dedicates himself to saving people suffering from cancer.

Years later, a man named Venu is critically ill with cancer and must be operated on. The treatment progresses well until Murali meets Venu’s wife, who is revealed to be Seetha. When Seetha learns that the doctor treating Venu is Murali, whom she had left, she becomes upset.

Despite the old wounds between them, Murali does his best to cure Venu. Seetha worries that Murali might take revenge on her by not providing proper treatment to Venu, who, aware of Murali and Seetha’s past, begins to hope for a future. Venu even asks Murali to marry Seetha in case the operation fails, as he does not wish for his wife to become a widow. Seetha becomes infuriated when she discovers Venu’s request and tells Murali that if Venu dies, she will die as well. Murali promises Seetha that he will save Venu even if it costs him his own life.

Murali works hard to save Venu so as not to create a misconception that he killed Venu to be with Seetha. With great effort, Murali manages to cure Venu’s cancer. However, when he reads the postoperative results, he is overwhelmed with joy and dies of high blood pressure caused by his own excitement. Venu and Seetha realize that Murali had sacrificed his life for their happiness and it stays in their hearts.

Woven into the story is a subplot following a girl in the same hospital Murali works in, who undergoes treatment for the same disease that Venu contracted. However, her fate is contrary.