I loved the added sci- fi element and the tie-ins to the real-life victims, and the reminder that these were actual people, not just victims.
What I didn't like
I’m not a big fan of this section, but I would like to see the “time window” mechanism get some more development, as I think that would provide some more structure and strength to the plot, and open some more interesting possibilities.
My overall impression
An interesting concept and a fun addition to the Jack the Ripper mythos!