Play Nazi fugitive Guess Who in detective note-shuffler The Ratline's Steam Next Fest demo

Sometimes you get a note through the door, nestled among the bills and flyers for local takeaways. Oi, it says, some priest's been murdered, and we need you to track down the folks on a list of Nazis he smuggled out of Germany after the war. Ok, you reply, it's the 1970s and I've got nothing better to do. That's the setup for Owlskip Games' The Ratline, the Steam Next Fest demo of which has just put my beleaguered Monday brain to the test.