The Quests button in the top right will give a breakdown of events by character. You'll be able to tell who's missing an event (unless it says "????")
Every character's scene are 100% (with a star beside them) and the fortune teller doesn't have anything to say, the bartender tells me I've hit the end of the current content and that I'm missing 1 secret scene. I've looked everywhere and there's no more map markers. The only thing I can think of is that I don't have Edgar's relationship full, so I might be missing a scene there but how do I trigger it?