Sanak (transl. Madness) is a 2021 Indian Hindi-language action-thriller film directed by Kanishk Varma and produced by Zee Studios and Sunshine Pictures. The film features Vidyut Jammwal, Rukmini Maitra, Neha Dhupia and Chandan Roy Sanyal in the lead roles. The film premiered on 15 October 2021 on Disney+ Hotstar. (India and other countries) and on Hulu in the United States. The film received mixed reviews from critics, who praised the performances of the entire cast, realistic action sequences and stunts performed by Jammwal, but criticized the plot.