Apple TV+.The six-episode drama, adapted from James Keene’s 2010 book, “In With The Devil,” revolves around Keene (Taron Egerton, “Rocket Man”), a charismatic, armed-to-the-teeth Chicago drug dealer and son of an ex-cop (Ray Liotta in his final role) who, in 1996, is busted and sentenced to 10 years in prison.Shortly thereafter, he’s offered a deal: transfer to a maximum-security prison in Missouri and befriend high-talking, mutton-chopped serial killer Larry Hall (Paul Walter Hauser, “Richard Jewell”). If he can elicit a confession from the next-level-creepy Hall, who’s suspected in the murders of at least 14 young girls, Keene’s sentence will be commuted.