Rakhal Das is a poor employee of the Postal department who is in severe need of money for the treatment of his only son. As a last resort, Rakhal takes the mail bag and drops it from a running train so that he can get it later. At the same time, a municipal van drops all the garbage there. He cannot find the bag or money so he goes to a moneylender named Dhananjay Saha but he finds him dead and the police arrest him for the case of murder and theft. Years later, an excavation is going on and the said mail bag is found. A mystery begins from an old letter which was recovered from the garbage.

• Uttam Kumar
• Supriya Devi
• Kali Banerjee as Rakhal Das
• Swarup Dutta as Rakhal's son
• Gita Dey as Rakhal's wife
• Tarun Kumar
• Bankim Ghosh as Balaram
• Khagesh Chakraborty
• Biren Chatterjee
• Basudeb Pal