Murder Most Foul (1964)

Margaret Rutherford and a superbly theatrical Ron Moody star in this murder-mystery caper about a murder of "Mrs. McGinty". "Miss Marple" is seconded onto the jury but is unconvinced by the police evidence against their alleged perpetrator - the lodger - and off she sets on her own trail of detection that involves her taking up a role with a local drama troupe headed by Moody. This features a solid ensemble cast delivering a mystery about wax, hot irons, crispy one pound notes and some bobbing about in a humorous and delightful manner. Nothing too onerous, and it takes a fun swipe at the ways of 1960s British "Rep" theatre culture too.