Little girl lives with her dead father

So, I think this is a Saoirse Ronan movie, but I really couldn’t find it anywhere so I might be wrong. This little girl has a doll named mustique, her dad died and his belly started bloating but she interacts with him as if he was alive. A crazy old woman seems to find interest in this girl when she finds her dead father. And does taxidermy on him. Sorry I don’t hace much extra info, I saw it on the TV when I was a kid. Thanks in advance