Running Out of Time (; literal title: Hidden War) is a 1999 Hong Kong action thriller film produced and directed by Johnnie To and starring Andy Lau as a cancer-ridden criminal who challenges a police negotiator, played by Sean Lau, to a 72-hour battle of wits and courage. Andy Lau won his first Hong Kong Film Award for Best Actor in 2000 for his performance in the film. The film was followed by a sequel, Running Out of Time 2, which was released in 2001.
Inspector Ho Sheung-sang (Sean Lau) is a talented police negotiator who often goes unrecognized. He meets Cheung Wah (Andy Lau), a man with only weeks to live, who sets up an elaborate game to challenge Ho. Cheung first appears during a fake robbery at a finance company, using fake bullets and a mock bomb to pull Ho into a three-day contest. Cheung keeps outsmarting the police, escaping with clever disguises and careful planning. As the game progresses, Ho becomes increasingly determined to find out why Cheung chose him and what the game's real purpose is.
While Ho and Cheung play their game, Cheung also gets involved in a bigger conflict in the criminal underworld. He targets Baldy, a ruthless gangster who stole a valuable diamond and betrayed his old mentor, Peter Cheung, who turns out to be Cheung WahâÂÂs late father. Cheung uses surveillance, sneaks into BaldyâÂÂs office, and pulls off a daring vault theft with a lookalike car and disguise to steal the diamond from Baldy. Meanwhile, Ho learns who Cheung really is and that he wants to avenge his father. Even though they are on opposite sides of the law, Ho and Cheung have to work together when BaldyâÂÂs men attack. Over time, they start to respect each otherâÂÂs intelligence and determination.
At the storyâÂÂs climax, Cheung sets up a diamond exchange at a bowling alley. This leads to BaldyâÂÂs arrest when it is revealed the diamonds were stolen from a nearby finance company. Cheung gets away with both the diamond and HK$20 million, but Ho eventually catches up to him. Cheung fakes another bomb, sets off a car explosion that is really just an engine-start device, and escapes, taking advantage of HoâÂÂs sympathy for his illness. Afterward, Ho finds out that someone using his name donated HK$20 million to a childrenâÂÂs cancer foundation. He also sees the woman Cheung often met on buses wearing the diamond, now disguised as a cheap trinket. This suggests Cheung spent his last days seeking revenge, testing Ho, and quietly helping others before disappearing from HoâÂÂs life.