After the hot-tempered police detective Fei messes up yet another operation, he is transferred to a fictional department that houses all the useless staff the force couldn�t sack. There he finds a new enemy in the mild-mannered desk officer Johnny, who loathes Fei�s disregard for discipline. But when Fei�s father and Johnny�s mother coincidentally become an item, the new brothers must somehow learn to cohabit under the same roof.