Then, as the day that I would be released from prison drew near, I became depressed and for some reason I sensed impending doom.
If you exit from prison you are getting your release from prison. But, before you move on, let me tell you one thing: Hope is a dangerous thing. Hope can drive a man insane.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.