Jak-Luke Sharp’s review published on Letterboxd:
“This is place of the dead. We're all dead here”
Son of Frankenstein takes what juice is left in the infamous franchise and runs on fumes. Boasting both Lugosi and Karloff in rather spectacularly written performances, Rowland V. Lee’s film is a decent finale in a trilogy. The story itself works well within the franchise, bringing it full circle nicely, but ultimately it’s a tad too long. Specifically in its first act, in which in places most of its development on Frankenstein’s family, but ultimately pays no avail throughout.