Limbo is a 2021 Hong Kong action thriller film directed by Cheang Pou-soi and starring Gordon Lam, Cya Liu, Mason Lee and Hiroyuki Ikeuchi. The film is based on the novel Wisdom Tooth by Chinese novelist Lei Mi. The film had its worldwide premiere at the 71st Berlin International Film Festival on 1 March 2021, and was theatrically released in Hong Kong on 18 November 2021.