The film opens with Vasudevan,a police officer, investigating the murder of Ramya - his ex-girlfriend. Initial reports from the scene of crime suggest that Ramya had committed suicide. But Vasudevan, suspects foul play & moves into the same apartment complex that Ramya lived, in-order to investigate further. While police investigation is underway in the neighborhood, people who are associated with the case are killed under seemingly mysterious circumstances. Vasudevan soon discovers a supernatural force in play, which seems to have taken the form of water(H2O). He probes further, and learns that Ramya's spirit is behind the killings. Ramya's spirit then uses her sister Divya as a medium to reveal the true circumstances behind her death at the hands of her husband Bala (Nandha). The spirit recounts the story of Ramya's marriage to Bala and their life together. In the early days of her marriage, Ramya inadvertently confesses her past relationship with Vasudevan to Bala, after which he ...

Starring:

Aadhi, Nandha, Sindhu Menon, Saranya Mohan, L. Srinath, Lakshmi Ramakrishnan, Heera Selvaraj

Genre:

Crime, Music, Mystery, Romance, Thriller