Limbo is a 2021 Hong Kong action thriller film directed by Soi Cheang 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.

Gordon Lam Ka-tung is a Hong Kong actor, film producer and screenwriter. Initially known for his supporting roles in films directed by Andrew Lau and Johnnie To, Lam eventually became a lead actor in the Hong Kong film industry, appearing in the 2013 box office hit, Firestorm, and the Hong Kong Film Award-winning 2016 film, Trivisa, which also netted him the Hong Kong Film Award for Best Actor.