Alex Chong Tak-Lik

A policeman forsakes his dream of world travel to care for a mentally impaired brother, who is later kidnapped by gangsters.

Two Hong Kong cops are sent to Tokyo to catch an ex-cop who stole a large amount of money in diamonds. After one is captured by the Ninja-gang protecting the rogue cop, the other one gets his old Orphanage gang, dubbed the "Five Lucky Stars," to help him. They don't like this much, but they do it.

In 1937 Shanghai, a soldier and a young woman have an awkward meet-cute in darkness under a bridge as they seek refuge during a bomb raid. Ten years later, the soldier, now a burgeoning songwriter and tuba-player in a marching band, is back in town desperately searching for his would-be soulmate. As fate would have it they end up living in the same building unbeknownst to each other. Through a series of mishaps, he mistakes her new ingénue roommate for his love interest and wacky love triangle hijinks ensue.