I really liked this detective puzzle! I wrote down notes at first to keep track of who's in what house and then I realized you can just drag them on the map. Still couldn't beat level 1 despite using the hint, I suck lol. But working it out was fun; the game loop is very enjoyable! Just a suggestion on the UX if I may, the photos have a fixed z-index so when stacking them in game, they always end up in the same order. If you set the z-index of the last photo dragged so it's always on top, it makes it easier to see which photo you're handling.
Nice game! Hope you continue to develop it post jam.