Villain is a 2017 Indian Malayalam-language psychological action thriller film written and directed by B. Unnikrishnan and produced by Rockline Venkatesh. The film stars Mohanlal in the lead role along with an ensemble cast including Vishal, Meka Srikanth, Raashi Khanna, Hansika Motwani, Manju Warrier, Siddique, Chemban Vinod Jose, Renji Panicker, Saikumar and Aju Varghese in supporting roles. Manoj Paramahamsa were the cinematographer. The songs were written by 4 Musics and the film score was composed by Sushin Shyam.

The story revolves around ADGP Mathew Manjooran, a senior IPS officer renounces his office after taking a sabbatical but is re-enlisted to deal with one last case involving a series of connected murders. Principal photography began on 3 March 2017 in Thiruvananthapuram, Kerala and ended in mid-June. It was the first Indian film to be completely filmed in 8K resolution. Villain was released in India on October 18, coinciding with the Diwali holiday. It received generally mixed reviews from critics. It also marked the Malayalam debut for Vishal, Raashi Khanna, Hansika Motwani and Meka Srikanth.