Not so easy to suspend my disbelief
I usually swallow far-fetched plot devices and storylines hook, line, and sinker --- for instance, I LIKED how Stanley Ridges’ hair kept miraculously changing colors in “Black Friday” (1940) --- but there are two other plot points in this film that I have problems with.
1. The operation. The voiceover has just finished telling us that it’s an illegal operation, yet Sovac (Karloff) performs it in a hospital w/o being caught. We see that the hospital is staffed with other doctors and nurses, but we’re expected to believe that none of these medical professionals questions much less NOTICES Sovac taking these patients into the operating room???? And that’s right, he took not one, but TWO patients into the operating room. Also --- apparently Sovac is such a skilled surgeon that he required no assistance during the operation.
2. The gangster’s brain in the body of the absent-minded professor, and the professor’s brain is thrown out w/ yesterday’s paper. Yet, the patient retains the memories of both men. How could the gangster's brain possibly absorb Kingsley’s knowledge of English literature?!?!?