Operation Mincemeat
Got a last minute ticket from the box office (my first time actually getting tickets at a show instead of in advance!). Loved every moment and almost cried (almost -- I'm a REAL MAN so I never actually cry except for the one time I left one cut of my expensive Iberico pork out of the freezer for multiple days without knowing it so I had to toss it). The constant role switching for the cast of five is alone worth the admission!