After they both accidentally insult their boss, Tin (Paul Chun), Hsia “Little Monster” (Yuen Biao), who works for the Criminal Investigation Division (CID) of the Royal Hong Kong Police Force, and new partner Lei Kung “Mustache” (Lowell Lo) are given the assignment of finding a missing witness. Only that man’s girlfriend, Rosa (Lu Hsiao-Fen), knows where he is. Little Monster doesn’t help his new partnership when he falls in love with Kung’s sister Lui Lui (Kara Hui). And the case gets dark when Rosa’s lover is killed, and our heroes have to protect her.

Luckily, the girls are way smarter than they are, even if the guys do end up having to save them by the end. The odds are against them, including an entire building of Wang Ping Tang’s (James Tien Chun) henchmen in a warehouse ready to kill them. But seeing as this is an enjoyable action-comedy directed by “Joe” Cheung, things will work out just fine. 

The 88 Films limited-edition Blu-Ray of Rosa features a new 2 K restoration from the original negative, commentary by David West, an image gallery, and a trailer. It comes in a rigid slipcase with new artwork by Sean Longmore, and includes a 40-page perfect-bound book and a premium artcard. You can get it from MVD.