Watch The Case of the Cold Fish for Free: How to Stream the Movie Online at 123Movies. . On the peaceful Lantau Island of Hong Kong, a murder takes place. A Eurasian is suspected until he turns out to be a cop from the city S.W.A.T team. The laid-back chief inspector Chow of the island is forced to collaborated. The ways of a city cop and the ways of a country cop collides into series of laughs.