Parasite

In a future where humanity has seemingly conquered disease, the SymboGen Corporation introduces a revolutionary solution: genetically engineered tapeworms, dubbed 'Intestinal Dwellers' or 'IDs.' These symbiotic parasites eliminate illness, boost immunity, and even secrete designer drugs, ushering in an era of unprecedented health. Sally, a young woman recovering from a mysterious car crash that erased her memory, finds herself navigating this new world with an ID of her own. However, as she slowly pieces together her past, a darker truth begins to emerge. Reports of strange behavior, violence, and an alarming sentience developing within the IDs suggest that the symbiotic relationship is turning parasitic. Sally, unknowingly a crucial part of SymboGen's ethically dubious experiments, must confront the terrifying reality that the 'cure' may be worse than any disease, as humanity's very existence hangs in the balance of a silent, internal war.