A haunted curve in 1990s Kerala, named after Sumathis tragic death, draws various people into supernatural encounters. As they experience strange events, the mystery of Sumathi and the roads dark history begins to unfold.

A vengeful Yakshini, once sealed inside a doll at the Aryanattu estate, is accidentally unleashed by two thieves. When a brutal murder draws Niranjan, the last surviving heir of the lineage, back to his ancestral home, he must confront an ancient curse and the dark secrets surrounding his family's past.

A taxi driver, Rasool and a salesgirl, Anna fall in love with each other. But soon their union is put to question when Anna persuades Rasool to convert to Christianity.