It’s unclear if this film is actually a continuation of the SPL series or if it just started as one and then mutated into its own thing. I thought I saw the characters for “Sha Po Lang” on the title card of the movie though, so I’m just gonna go with it. Regardless, like the second film in the series, SPL 2: A Time for Consequences, Paradox has only a tenuous thematic relation to its forbearers: all of the characters are new. Louis Koo plays a Hong Kong cop who travels to Pattaya, in Thailand, in search of his daughter, who has gone missing. He hooks up with a Thai cop (Wu Yue) as the two uncover an organ trafficking ring with connections all the way to the top of city government. Helping out in the investigation is another cop, a superstitious (possibly psychic) Tony Jaa, star of the last SPL and arguably the best martial arts star in the world today, in what amounts to little more than a guest-starring role. The final villain is played by Lam Ka-tung (Sparrow, Trivisa), which means that the two most important Thai characters in the film are played by Chinese actors. Such are the vagaries of international cinema.