https://youtube.com/playlist?list=PLfp_r1A709h_A4T5QlnD1nZs7RWo97leF

https://youtu.be/yqpOAtBdgRc

Cooler twist ending could have been that the protagonist never had amnesia, instead she was faking it to trick Julia into admitting to the murder plot, then when she learns of the change to the will she can use the tape to pretend she‘s really Doe.