Ultra serious Ko Lap and carefree Kung Kwan are expert assassins.It's love at first sight for Kwan when he runs into the lovely Bin Yee. And Ko Lap continues to hide his love for Sau Yu, agent for him and Kwan. Unkowingly, Ko Lap executes a contract on Yee's father.

Undercover cop Lok Hwa takes two years to become the trusted lieutenant of rising Hong Kong drug lord, Feng. The night of the big bust, Feng's flaming car crashes spectacularly into the sea; Feng is presumed dead. Hwa returns to the force and to June, his patient girl friend. Also, to save Feng's lover Yung from a life of crime, Hwa gives her his pager number and promises to be there for her. A year later, Feng reappears, asking Hwa's aid with one last task before he returns to the mainland forever. Feeling sentimental, Hwa agrees to help and finds himself set up to take the fall in a drug war. June is in danger, too, and death awaits as Yung realizes it's Hwa she loves.