Who could have predicted that David Lam’s modestly-successful financial thriller Z Storm would open the way to a full-blown franchise, yielding four installments in 5 years? In 2016, S Storm doubled its predecessor’s box-office take, before seeing its own financial success doubled by this year’s L Storm. And P Storm will come out in late 2019. Here, Louis Koo is back as William Luk, the handsome ICAC (Independent Commission Against Corruption) agent who looks bored even when he’s chasing a perp down an obstacle-strewn alleyway. Back from S Storm is Lau Po Keung (Julian Cheung) of the JFIU (Joint Financial Intelligence Unit): together, Luk and Lau investigate a money laundering case involving a corrupt customs officer (Michael Tse) and a dangerous criminal mastermind (Patrick Tam). Meanwhile, officer Ching Tak Ming (Kevin Cheng), of the ICAC’s own internal affairs division, has his sights set on Luk, after it is revealed by an informant (Stephy Tang) that he accepted a sizable bribe.

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