Sarath, a young guy, is head-over-heels in love with his neighbor and childhood friend, Shari. But, he never finds the courage to express his feelings for her and keeps waiting for the perfect opportunity. The movie revolves around a wedding, where who marries who is answered.

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.