General · EdgepediaOctober 3, 20267 min read

Detective Dee: The Four Heavenly Kings

Detective Dee: The Four Heavenly Kings (Di Renjie zhi Si Da Tianwang, 狄仁杰之四大天王) is a 2018 Chinese action-fantasy film directed by Tsui Hark and the third entry in his Detective Dee series, following Detective Dee: Mystery of the Phantom Flame (2010) and Young Detective Dee: Rise of the Sea Dragon (2013). It was released in mainland China on July 27, 2018, and stars Mark Chao as the Tang dynasty investigator Dee Renjie, with Feng Shaofeng, Lin Gengxin, Ethan Juan, Ma Sichun, and Carina Lau.¹^•² In the chronology of the series' story, it is a direct sequel to the 2013 film and a prequel to the 2010 film.³

Key fact	Detail
Director / screenwriter	Tsui Hark; screenplay by Chang Chia-lu (张家鲁), with Tsui Hark and Chen Kuo-fu also credited²
Release	Mainland China July 27, 2018; 132 minutes; IMAX 3D conversion via the IMAX DMR process¹^•⁴
Principal cast	Mark Chao (Dee Renjie), Feng Shaofeng (Yuchi Zhenjin), Lin Gengxin (Shatuo Zhong), Ethan Juan (Master Yuan Ce), Ma Sichun, Carina Lau (Wu Zetian)²
Box office	Mainland China US$89,016,856 (about 606 million yuan); worldwide US$90,040,771²
Audience and critics	Douban 6.1/10; Maoyan 8.1/10; IMDb 6.3/10; Rotten Tomatoes 58% Tomatometer (12 reviews) and 67% Popcornmeter¹^•⁵
Awards	Seven Hong Kong Film Award nominations including Best Cinematography, Best Art Direction, and Best Action Design; nominated for Best Visual Effects at the 55th Golden Horse Awards⁶
Production	Huayi Brothers Media and CKF Pictures; international distribution by Well Go USA⁴^•⁷

Spoilers

Plot

After solving the Sea Dragon case, Dee Renjie is rewarded by Emperor Gaozong with command of the Dali Temple, the imperial court of judicial investigation, and with the Kanglong Mace (亢龙锏), a weapon that may be used to strike treacherous ministers below and even to discipline the imperial clan above. This grant of authority makes Dee the greatest obstacle to Empress Wu Zetian's path to power. Wu orders Yuchi Zhenjin, the commander of the imperial guards, to assemble a powerful group of irregulars called the "Yiren Group" and seize the mace. With the help of the court physician Shatuo Zhong, Dee must protect the mace, investigate a series of strange cases, and withstand Wu's pressure while the Tang dynasty slides into crisis.²

The strange cases include a masked organization wearing the demon face of Chiyou carrying out killings across Luoyang, a carved golden dragon on a palace pillar that comes alive and kills several people, and the statues of the Four Heavenly Kings changing to angry expressions.⁶ The film's supernatural apparatus is built on the concept of "fangshu" (方术), a form of magic or illusion; the Guardian critic Phil Hoad described Dee as styled "half-Sherlock, half Q-style gadget man," and judged that the film has creaky effects and a lack of logic but undeniable energy.⁸

The meaning of the title

The title's referent is deliberately layered. Tsui Hark said in an interview with China Film News that he was inspired by the four guardian deities of Buddhism and wanted to create, on top of the three established characters, a fourth figure who was more formidable in martial skill and more transcendent: the monk Yuan Ce, played by Ethan Juan.¹ Asked directly what the "Four Heavenly Kings" are, he answered that for him the phrase names a spiritual state: the four characters who make the story's important choices become the ones who determine the possibility of an era's transformation in Dee's world. He added that a new female member of the Dali Temple, who practices fangshu, could also be counted as one of the four.⁹

Mark Chao said in a pre-release interview that he had finished shooting without settling the question: his first reading was that Dee, Yuchi Zhenjin, Shatuo Zhong, and the newly appeared Master Yuan Ce formed the four, but the script uses the phrase in many places, including a four-member group of irregulars and the villain's four guardians.¹⁰ Chinese critics noted the same ambiguity; one review in China Press, Publication, Radio and Television observed that the four Heavenly King statues appear on screen only when Dee hides the mace, and are then destroyed in a fight unconnected to the main plot, which made the choice of title puzzling.¹¹

Production and release

The project was announced on March 1, 2017 at Huayi Brothers' "Imagination Industry" film plan launch event, with an initial release date of the 2018 Spring Festival; it wrapped in August 2017, and a Beijing press conference on September 21, 2017 set the release for July 27, 2018.¹ IMAX China announced that the film would be converted to IMAX 3D through the DMR process and play in IMAX theaters nationwide from July 27, the series' second IMAX release after Young Detective Dee: Rise of the Sea Dragon in 2013.⁴ Mark Chao, Feng Shaofeng, Lin Gengxin, and Carina Lau returned from the previous film, joined by newcomers Ethan Juan and Ma Sichun.⁴ Well Go USA, the film's North American distributor, released it on streaming and home video on November 13, 2018.⁷^•⁵

Box office and reception

The film opened strongly but faded against a comedy rival. It took 110 million yuan on its first day and 295 million yuan over its first three days, the best opening of the series, but ran against Hello Mr. Billionaire, which earned 897 million yuan in the same three days.¹² After nine days the cumulative total stood at 495 million yuan, with Maoyan projecting 627 million.¹³ The final mainland gross was about 606 million yuan, against 286 million for Mystery of the Phantom Flame and 585 million for Rise of the Sea Dragon; the series' box office rose with each film while its Douban score fell, from 6.6 for the first film to 6.1 for this one.¹⁴ In Hong Kong it opened on September 13, 2018 and grossed HK$506,752 over a 14-day run.¹⁵

Western critics were mixed. Rotten Tomatoes recorded 58% on the Tomatometer from 12 reviews and 67% on the audience Popcornmeter.⁵ Justin Chang of the Los Angeles Times called it a beautifully filmed fantasy while judging that the movie never quite takes flight; The Times gave it 3 of 5 stars and praised its "boggling and exhilaratingly strange" visual imagination.⁵

Critical assessment

Chinese commentary converged on a split between spectacle and story. A widely cited summary holds that the film extends the series' established pattern of "fantasy over deduction, effects over plot," pushing both to new extremes.¹ Reviewers singled out the sequence in which the Yiren Group animates the golden dragon on the palace pillar, and the final battle at the Dali Temple in which the cult leader transforms into a giant Heavenly King, sprouts red tentacles, becomes a mass of eyeballs, and is opposed by a giant white ape.¹ The Guangzhou Daily critic Hu Guangxin judged the effects, cast, and pacing adequate for a summer blockbuster while noting unresolved threads, including the never-clarified meaning of the title and an ending in which Yuan Ce defeats the villain with a gesture.¹⁶

A more skeptical line came from Yang Junlei in Wenhui Daily, who argued that the film piles up historical fragments symbolically without a coherent causal logic, and that its central conflict, the persecuted Fengmo clan's revenge against the Tang, contradicts the historical record of the period recorded in the Old Book of Tang.³ A The Paper analysis placed the film in the series' drift away from detective fiction: where the 2010 film's most surreal elements were a historically grounded giant Buddha statue and a venomous insect, by 2018 the screen is filled with golden dragons, tentacles, and wrathful deities, making the film hard to classify as detective work at all, and leaving viewers who arrived expecting deduction with a mismatch of expectations.¹⁴

References

Initially written Oct 3, 2026 · Reviewed: Oct 25, 2026 · Edited: Oct 15, 2026; Oct 25, 2026; Nov 1, 2026