Bud and Lou play detectives trying to track down the monster killer who turns out to be Dr. Jekyll (played here by horror great Boris Karloff).

Weak entry has few laughs and wastes Karloff badly.

If you must see one of the Abbott and Costello horror spoofs see the Frankenstein one (I hear it's great, haven't yet seen it).

Directed By: Charles Lamont.
Written By: John Grant, Leo Loeb.

Starring: Bud Abbott, Lou Costello, Boris Karloff.