A discovery from TMDB

Letterbox

Ranjan Roy, a retired college professor, is conducting research on old letters. This takes him to the Mukherjee mansion where he meets Mr. Mukherjee and gets his permission to read a box full of old letters belonging to his parents and, in process, comes to know about the unfortunate past that connects these letters with the family.

Directed by Suvadeep Sarkar, Suman Bhaduri