The Thriller is a 2010 Indian Malayalam-language action thriller film written and directed by B. Unnikrishnan. It stars Prithviraj Sukumaran, Siddique, Lalu Alex, Catherine Tresa and Sampath Raj in pivotal roles. It was released on 17 November. Later on, it was dubbed in Hindi under the same title. The film is based on the murder case of renowned financer Paul Muthoot.