Another possibility is that it is a magical self - transformation. The woman might be in a desperate situation and made a deal with some magical creature or force. In exchange for something she wants, like saving her loved ones, she has to turn into a rat. And then the story could be about her adventures as a rat while still having her human consciousness and trying to find a way to break the deal and turn back.
It could be an ordinary woman living in a small town. She might be a kind - hearted person, like a teacher or a nurse. Her transformation into a rat would be a huge shock not only to her but also to the people around her.
Magic could be one reason. Maybe she angered a sorcerer or a witch who then turned her into a cat as a punishment. Another reason could be a curse from an ancient object. If she touched a cursed amulet or something similar, it could trigger the transformation.
One possible plot for an inflatable woman transformation story could be that a woman is cursed by a mischievous fairy. As a result, she slowly starts to transform into an inflatable state. Her body fills with air, and her movements become bouncy. She has to adapt to this new form quickly. She might find that she can now roll like a ball when fully inflated, which helps her escape from some villains who are chasing her. And throughout the story, she tries to break the curse by going on a quest to find a magical antidote, learning about herself and her new capabilities along the way.
One possible plot twist could be that the transformation is only temporary, and the man is about to propose to his girlfriend when he suddenly changes back, leading to a very confused and comical situation.
In a 'rat in the skull' science fiction scenario, it could be that an alien race implants a rat - like creature into the skulls of humans as a form of control. The story could follow a group of rebels who discover this and try to find a way to free humanity from this alien - imposed curse. They might face many challenges, like the rats being able to sense their plans and counteract them, but they keep fighting to regain their freedom.
One possible plot could be that a woman is exploring a jungle and accidentally stumbles upon an anaconda's territory. The anaconda, being a predator, sees the woman as a potential threat or prey and starts to approach her. The woman then has to use her wits and any available resources to escape from the anaconda.
One reason could be a magical curse. Just like in many fairy tales, an evil sorcerer or witch might cast a spell on the woman out of jealousy or spite. For example, if the woman is too beautiful or has something the villain wants.
One way could be through magic. For example, like in the story I told before, a magical object such as a shell or a spell cast by a sea witch could cause the transformation. Another way might be a result of a deal with a sea spirit. If a woman offers something in return, the spirit could transform her into a mermaid.
One possible plot could be that the rat, named Ratchet, accidentally makes a loud noise while searching for food near the baby's napping area. This wakes the baby up, causing chaos in the household. The family then tries to calm the baby down while also dealing with the mischievous Ratchet.
Well, perhaps it could be a magical tale where a witch curses a woman and she turns into a horse. Maybe she has to go on a journey in her horse form to find a way to break the curse.