Mudmonster (2021)

Following the recent death of her father, a young girl named Fiamma fails to connect with an overwhelmed, distant mother and a Cthulhu-obsessed teenage sister. Left to her own devices in the remote country house where she lives, Fiamma spends her time talking to the strange little sculptures she makes with the mud collected from a pond in the backyard. She seems to know these creatures better than she knows anyone else. While looking out of her bedroom window one night, Fiamma sees a strange mud creature standing by the pond. Fiamma is scared, but she can't stop looking, as if she were hypnotized. The next morning, she wakes up feeling ill. From then on, each day for Fiamma is spent in a haze, filled mostly by the arrival of a mysterious illness that causes her to have auditory hallucinations and dizzy spells. And each night is filled with the excitement and the fear of yet another encounter with the mud monster - encounters that bring her each time a bit closer to the monster and a bit further from reality. Meanwhile, Fiamma's sister, locked up in her bedroom-turned-shrine, is living in her own parallel world of occult religious frenzy, which culminates when an unknowing octopus slides in her room. Fiamma's dizzy spells worsen and she experiences a seizure. The same night, she opens the window and invites the mud monster inside her room.