Four friends goes out on a long drive and experiences eerie incidents on the road. Dangerously haunting, strange and unfortunate events start unfolding and one of the friends (Raka) goes missing. After Raka returns her life turns upside down as she starts getting tormented by her. Is she Petni? To get the answers get ready to be at the very nexus of mystery.

Set against the vibrant backdrop of a traditional Bengali wedding in Cooch Behar, Biye Fiye Niye is a witty, contemporary exploration of love, friendship, and the evolving institution of marriage. On the surface, it's the joyous celebration of Sromona, a young woman finally ready to marry Rohan, a charming Delhi-based groom. But as the guests—friends and family from both sides—gather in festive fervor, a complex web of relationships and secrets begins to unravel.

A resident tea plantation worker dreads her approaching retirement as she is forced to choose between keeping her home or saving her daughter from an exploitative and back breaking labour system.