Not For Broadcast

For this achievement, you need to fail to solve the mystery, whilst also sending Holly to The Vault.

Since the mystery is solved by you just need to not do that. No worries though if you accidentally solved one of them. I got the achievement even though I solved the mystery on the 2nd segment.

Speaking of the 2nd segment, this is where most of the work is done. The spirit will At this point, all you should need to do is play the broadcast to the end.