The inevitable ‘Jack the Ripper’ episode.
I thought it all went pretty well, really. The usual problems with mystery episodes like this is that you know the regular cast member is innocent. But they did a good job here in making Scotty look not just plausible as a suspect, but positively guilty.
Things went off the rails a little bit in the final act, once the identity of the killer is known and McCoy is injecting everyone with happy juice to prevent fear and anger. It just wasn’t as interesting as what had gone before in the episode.
43 down, 694 to go.