Premise is interesting, reminiscent of Bluebeard's Bride in its room-to-room playstyle, but could use a little bit more polish; especially in wrapping things up! This primarily because at the beginning of the GM sheet [spoilers ahead for those who've yet to read up] the GM is told to ask the player what horrible thing they've done, something like a murder. They might run with something else. However the end takes for granted that they've gone with murder.
Other than this it's a solid foundation for a fun game! A typewriter was not the first kind of machine that sprang to mind, so definite points for an original pick :D