Thank you, I'm really glad you liked it.
Right now, there is only one ending. I did consider multiple endings, but I couldn't make up my mind. Then before long, I ran out of time. Making a game in 72 hours is pretty frantic. :) I may implement multiple endings in a future version.
More broadly speaking, however, this raises some difficult design questions.
Specifically, the creator's desire to create a consistent character clashes with the desire to grant the player authorship over their own experience. To put it another way: the "bad" ending feels like the "correct" ending, dramatically speaking, for Peter Marlowe, and yet I appreciate that players want to have control over the ending. Whichever path the creator takes, something is sacrificed. :-)