Okay...what's the deal?
So...Dr. Jekyll's lab monkey invents freebase during the Victorian Era. Fair enough. Jekyll becomes the world's first crackhead. Check. Crackhead Jekyll then becomes Hyde. Gotcha. Hyde becomes Jack the Ripper (though his murders don't remotely resemble the ACTUAL Ripper murders). I can deal with that. Every time Jekyll hits the crack pipe, he's transported into a realm where everyone dresses like it's the 1980s. Wait, WHAT? Hold on one second there, Mister!
Seriously...the guy gets cracked out of his gourd, heads to Whitechapel...and suddenly, it's the late 20th Century. Look at the way the prostitutes are dressed. Look at everyone's hair. So, what...in the nicer parts of London, it's the 1880s, and in the East End, it's a hundred years later?
WHAT THE HELL IS GOING ON?????