L Storm is a 2018 Hong Kong action thriller film directed by David Lam, and starring Louis Koo and Julian Cheung, alongside Kevin Cheng, Stephy Tang, Patrick Tam, Michael Tse and Adam Pak in his debut film role.

Independent Commission Against Corruption (Hong Kong) (ICAC) investigator William Luk and Joint Financial Intelligence Unit (JFIU) officer Lau Po-keung are respectively investigating a corruption and money laundering case both involving Customs officer Tik Wai-kit, but are unable to find any clues.

Lau discovers that Luk was framed which is inextricably linked to the money laundering case he has been investigating.

At the same time, Lau also suspects bank director Thompson Yau (Adam Pak) assisting the mastermind of a criminal organisation, Wong Hoi-wo, in money laundering.

Chinese Anti-Corruption Bureau Director Hong Liang arrives in Hong Kong and to provide important intel for Lau, revealing that mainland Chinese corrupt officials are involved in the money laundering case.