I think the idea is good, but several details kept me from enjoying it. You ask the player to move a lot, but they are constrained by the tile-based movement, which gets really tiresome when you have to walk a lot. Also, there is no clear indication where the hut is, so when you get far it's possible to get lost. It is not clear which plants are there just as decoration, and which can be picked up.
I liked the art style though, and the music is nice. The concept is good too! Make people think you're healing them all the while poisoning them is great.