“A Larva to Love” is another Iguchi film with an interesting plot:

Fumio, a young manga artist has trouble with women due to an incident from his childhood. One day a clumsy female editor upsets him and he ends up scarring her face. The scar turns into a strange parasitic life form which requires her to siphon Fumio’s blood to survive. Fumio feels guilty for his actions and allows her to do this, even though she becomes increasingly hateful toward him. Eventually though, they develop a strange symbiotic relationship.