Thakkol (transl. Key) is a 2019 Indian Malayalam-language thriller film directed by Kiron Prabhakaran and starring Indrajith Sukumaran and Murali Gopy.^[1] The film was in production for over a year.^[2] The lead cast had previously starred together in Ee Adutha Kaalathu (2012), Left Right Left (2013) and Tiyaan (2017).^[3] The film is produced by director Shaji Kailas.^[4] Sukumaran and Gopy play priests in the film.^[5] The film was predominantly shot in Goa.^[6]

The Times of India gave the film a rating of three out of five stars and stated that "The title of the movie itself is an example for that as the story speaks about one’s key to wisdom and contentment in life".^[8] The New Indian Express gave the film the same rating and wrote that "Besides, the old-fashioned filmmaking approach, the slightly colour-drained images, and the mismatched background score make the film a bit of a chore to sit through".^[9]