The film centers around a Malaysian pharmaceutical company using a new virus to generate an epidemic. A secret organization, known as “The Leaker”, discloses this information. After the suicide of the pharmaceutical company’s son and a local reporter, the wife of the pharmaceutical company’s owner leaves for Hong Kong. A Malaysian police chief , Hong Kong police officer, and journalist work together to locate her whereabouts.
Dayo Wong stars as top agent Mr. Chan, who suddenly finds himself removed from duties after his partner Wonder Child unintentionally offended a policewoman, Ms. Shek. But when a financial officer goes crazy due to drugs, Mr. Chan is called back in to solve the case, which he accepts even though this means partnering up with Ms. Shek. The two have some ups and downs while working together, eventually leading to romance.
Taxi driver David, who’s doomed after a terminal cancer diagnosis, accidentally kills hotel owner Patrick in a car crash. Patrick’s girlfriend takes over his hotel by a lake in Hong Kong, which is soon plagued by serial suicidal incidents.