Killer Babes is a true crime conversation led by Katie and Kirby, and the cases are set around New England. The places are specific: Provincetown on Cape Cod, Danvers, Lawrence, Andover and the banks of the Neponset River. That local detail is what holds the show together. Episodes tend to use two registers. The openings are loose and chatty. They cover small updates, like a light show at Roger Williams Park Zoo that the pair found mediocre, the first snow of the season, or a joke that listeners must know by now that this is a podcast. Then the tone firms up into narrated case history, with names, dates and passages quoted from news coverage. The Colleen Ritzer episode shows the method. It reads out classmates' descriptions of a 14-year-old taken from a CNN article, then traces Ritzer's life from her family in Lawrence through Andover High School and Assumption College to her teaching at Hale Middle School in Stow. Several episodes come back to Provincetown. Part 1 of a look at the book 'The Babysitter: My Summers with a Serial Killer' covers the Tony Costa case: the discovery of Susan Perry's remains, Costa's many confessions and the failed polygraph exams that showed many of them to be untrue. Part two plays an interview with co-authors Liza Rodman and Jennifer Jordan. The book combines memoir and investigation, and the conversation keeps returning to memory: the moment of realizing where a charismatic babysitter had been taking the children, and a sister who remembers set against one who forgets. The Lady of the Dunes episode goes back to P-Town and works through suspect theories by number. One asks whether a young witness's memory shifted over the years. Another weighs sightings of Whitey Bulger on the Cape while noting he was never officially linked, and a third turns to Haddon Clark and a letter he sent to a friend in 2004. The interviews go beyond authors, too. Julie Murray joined for the third part of a season-three finale on Mara's disappearance, and the exchange starts with how her family has been holding up. There is room for seasonal fright as well. 'Ep62 New England’s Nightmare on Elm Street' makes a case for stretching spooky season to Thanksgiving, then follows a man named Freddie, a fire and three boys who are later found murdered. Sign-offs stay casual, with a nudge toward good deeds in one and teasing about new-year goals in another. A good first stop is the Babysitter pair, which plays both halves of the show back to back: the case recap and the conversation. The balance suits anyone who wants case detail delivered with a friendly, unfussy edge.