Flash is a 2007 Indian Malayalam-language psychological crime thriller film, directed by Sibi Malayil and written by S. Bhasurachandran. It was produced and distributed by Tomichan Mulakuppadam. The film stars Mohanlal, Indrajith Sukumaran and Parvathy Thiruvothu. The plot revolves around Dhwani, who has to go through some harrowing experiences, and her big, joint family. Flash was released on 25 December 2007.

Plot

Priyan is a software engineer working with Dr. Mithun, a Mumbai-based Information Technology industrialist. Dr. Mithun Madhavan is a psychiatrist in reality. Priyan is in love with his uncle's daughter Dhwani who was brought up in Chennai. The story deals with the disturbing events in Dhwani's life and how Dr. Mithun helps her overcome those.Until her father menon gets murdered and police suspect dhwani however mithun proves her innocence with CI jacob chandy's help and proves bhadran as the suspect however bhadran reveals that he's a witness to menon's death.the perpetrator in fact is arunkumar priyan's friend after menon fought with arunkumar resulting in menon to be killed.Now mithun proving dhwani's innocence arun is taken to custody.