Books like The Devil's Cold Dish by Eleanor Kuhns

"In England in the late 1920s, The Honourable Daisy Dalrymple Fletcher, on a convalescent trip to the countryside, goes to visit three old school friends in the area. The three, all unmarried, have recently bought a house together. They are a part of the generation of "superfluous women"--brought up expecting marriage and a family, but left without any prospects after more than 700,000 British men were killed in the Great War. Daisy and her husband Alec--Detective Chief Inspector Alec Fletcher, of Scotland Yard --go for a Sunday lunch with Daisy's friends, where one of the women mentions a wine cellar below their house, which remains curiously locked, no key to be found. Alec offers to pick the lock, but when he opens the door, what greets them is not a cache of wine, but the stench of a long-dead body. And with that, what was a pleasant Sunday lunch has taken an unexpected turn. Now Daisy's three friends are the most obvious suspects in a murder and her husband Alec is a witness, so he can't officially take over the investigation. So before the local detective, Superintendent Underwood, can officially bring charges against her friends, Daisy is determined to use all her resources (Alec) and skills to solve the mystery behind this perplexing locked-room crime"--

In 1813 London, Viscount Sebastian St. Cyr investigates the brutal murder of plantation owner Stanley Preston, uncovering links to King Charles’s 1648 beheading and a web of political intrigue involving the Home Secretary and a vindictive former colonel.

After Pearl Harbor, a murder of a Japanese family in Los Angeles sets off a tense investigation that brings together a brilliant Japanese‑American forensic chemist, a daring woman, a future police chief, and a formidable villain.

Amory and Milo Ames investigate a decades‑old murder that resurfaces when socialite Isobel Van Allen returns to her former country house to publish a scandalous sequel, forcing the detectives to untangle a web of lies and uncover the killer.

"One morning before dawn at her regal country estate, Lady Lavinia Truelove is crushed to death by a horse. Classified as "death by misadventure," this appears a gruesome accident, but Scotland Yard Detective Joe Sandilands suspects foul play--a misgiving he is struggling to separate from his personal grievances toward Sir James Truelove, who is Lady Lavinia's widower and the influential academic patron of Dorcas Joliffe, whom Joe one day hopes to marry. As Joe's investigation yields surprising secrets about one of England's most powerful families, he discovers how little he knew about not only the gilded lives of the moneyed, but also about his relationship with Dorcas. Is Joe prepared to risk a future with the girl he loves to uncover the truth behind Lady Truelove's death?"--