“This poor woman wasn’t murdered, she was plundered.” The two-part Euston Films drama finds Michael Caine playing Insp. Abberline of Scotland Yard as he investigates the ritualistic killings of several women on the streets of Victorian East London. This policeman has a fondness for alcohol, but thankfully Sgt. Godley (Lewis Collins) is there to keep him in line while they navigate the political pressures from their s…