Mrs Sidhu (Meera Syal, Yesterday) is a chef with a taste for solving mysteries. A lifetime of being an Indian "aunty" has sharpened her skills as an investigator: an instinct for truth, a warmth with people, and an indefatigable sense of nosiness. Recently widowed, she juggles her new catering business with her efforts to encourage and motivate her wayward son, Tez (Gurjeet Singh, Ackley Bridge). As Mrs Sidhu finds her way around the kitchen on her various catering jobs, murder somehow always manages to find her. Ever ready to follow her nose, her sleuthing leads her across the path of long-suffering DCI Burton (Craig Parkinson, Line of Duty). A dour divorcé, Burton was once at the top of his game as a detective, but after some lazy mistakes, he's feeling pressure to prove himself. At first aggravated by Mrs Sidhu getting mixed up in his cases, he reluctantly begins to accept that together they make the perfect pairing to fight crime.