第四季依然由Reece Shearsmith和Steve Pemberton两位怪才领衔,主役,担纲,主角，依然是6集。
　　其中第一集叫"桑吉巴"，叙述,阐述,陈述,描写的伦敦一家叫桑吉巴的酒店第9层的故事，游客、妓女等形形色色的人都聚集在这里，出现,产生,形成,酿成了阴差阳错的事...

　　Follows a group of police officers on the front line wondering what they did to end up where they are on the ugly side of Manchester. Keeping these streets clean is a Herculean task, enough to demoralize even the keenest rookie. But there's a reason these cops are in this force. As the never ending rabble off the local estates pours in, Inspector Vivienne Deering, the station's sharp, funny and hard-as-they-come boss, and her team led by DC Dinah Kowalski and DC Joy Freers, show they have what it takes to crack crime and to expose the addled, the swanky, the pimps, the petty and the really proper nasty bastards for the sewer rats they are.

　　2017秋拍摄，2018年播出

　　An oddball couple of private detectives meijubar.net named Luella Shakespeare and Frank Hathaway investigate crime in Stratford-upon-Avon.