I just watched "Based on a true story" (D'après une histoire vraie, 2017) by Roman Polanski.
I can't in any way figure out what actually happened, I've got some theories and I've tried to search around but there is no review going into story analyzing what actually happened.
Is there any sign o symbol that I missed which can be used to find out what movies is talking about and answers these questions?
1. Was Elle a reality or just a figure in Delphine's mine?
2. If she really exists why did she want Delphine dead?
3. Who wrote the final story and sent it to publisher?