Complex sentence: Another anti-fur cinema PIF from 1987, in which a couple enter a clothes shop looking at fur coats on mannequins, unknowing that a fly comes inside the coat, laying eggs inside it.
Split into simpler sentences: Another anti-fur cinema PIF from 1987, in which a couple enter a clothes shop looking at fur coats on mannequins. Unknowing that a fly comes inside the coat laying eggs inside it.