Pritha, a center aged housewife stays together with her husband Alokesh and her 8 yr outdated son Riju in a home within the outskirts of Kolkata. Her life adjustments impulsively when a stranger enters Pritha's home at evening and takes Pritha and her son Riju as hostage inside few moments. Riju, the 8 years outdated son, nevertheless with none apprehension begins getting keen on this undesirable visitor. Pritha additionally surprisingly strikes a pleasant chord with the stranger in the home..There's something weirdly charming concerning the stranger which pulls Pritha's consideration. As time passes Pritha goes by a spread of feelings of eminent worry, astonishment and finally develops a reference to the obvious terrorist. Is there one thing extra to it? Be careful ZBCO, Raater Atithi on sixteenth October solely on Zee Bangla Cinema Originals.