Even though this may be considered the weakest link in the legacy series of Frankenstein films,, 31-44. i rather enjoyed this one,, Lon Chaney Jr. plays the monster this time,, it was said that Boris Karloff didn't wanna be the monster no more,, because he felt that the series was getting to campy so to speak,, Bela Lugosi is also back as Ygor again,, boy you just can't seem to kill Ygor either,, hang em,, shoot him,, he just seems to come back for more. Frankenstein and Ygor in this one seek out the good dr's second son, to see if they can switch brains in this one,, and have the monster wind up with Ygor 's brain,, now folks that's a scary thought,, again the monster speaks in this one,, which i think is very very good,, this one should have a higher rating overall,, it's n ot a bad film at all,, and Lugosi,, and Chaney Jr. did a great job in it.