Bollywood thriller mystery, Hum Shakal, directed by Jambu was released in the year 1974. The movie starred Rajesh Khanna and Moushami Chatterjee in lead roles while Tanuja, Aruna Irani, Ramesh Behl, Asit Sen, Jagdeep, Asrani, Jankidas and Meena T. also played important characters in the film. The melodious music of the movie was directed by the veteran well known music director Rahul Dev Burman while the songs were rendered by Kishore Kumar, Mohammed Rafi, Lata Mangeshkar, Asha Bhonsle etc.

The movie starts with a kind hearted guy named Ram ( Rajesh Khanna ), who belongs to a poor family and works as a labour in a firm for making his living. He rescues an old women froma certain death. The old women get impressed by his gesture and ask him to get married with her young and beautiful daughter, Radha ( Moushami Chatterjee ). Ram agrees to do so and soon they both get married with each other. Just after their marraige, the old lady passes away. After soem time, Radha gives birth to a child.

One day, the child becomes ill. having no other option left, Radha decides to go to Ram’s firm to tell him about the child’s illness. But she get the shcokd of her life after arriving there. She get shcoked to learn that Ram is living a parallel life with another name Laxman. And he is living with another women named Lalita ( Tanuja ) just like husband and wife. What will happen now?

The songs of the movie are:

1. Hum tum humsum raat
2. Rasta dekhe tera byakul
3. Udt chidiya udte udte
4. Dekho maine kitni sayani hoon
5. Main tumko doongi saiyan