Insomnia's Waking NightmareG 10

Insomnia's Waking Nightmare G10:
Completed the Prologue.

Story related, but can kind of be missed. If you skip all the cutscenes in the prologue, the achievement won't unlock and you'll need to start a new game. When the game first launches, just watch everything until you get this achievement, then you can begin to skip cutscenes if you'd like.