I sent someone to buy lobster. What movie is it from?

Lobster Interpol. This sentence comes from the lobster shop I just bought. But it failed. This movie is called Lobster Interpol. Synopsis: Du unreliable anti-drug squad, composed of semi-retired Uncle Neng, Xiaohua who hates marriage and newcomer Chen Li, opened a lobster shop next door in order to spy on drug dealers more covertly. Unexpectedly, business is booming. Running a lobster shop while looking for clues has made a series of ridiculous jokes, and there is a bigger conspiracy hidden around this lobster shop.