Boris Karloff in "Abbott and Costello Meet Dr.Jekyll and Mr.Hyde"

Abbott and Costello Meet Dr. Jekyll and Mr. Hyde is a 1953 horror comedy film directed by Charles Lamont and starring the comedy team of Abbott and Costello, and co-starring Boris Karloff.

Loosely based on the novel The Strange Case of Dr. Jekyll and Mr. Hyde by Robert Louis Stevenson, the film follows the story of two American detectives visiting Edwardian London who become involved with the hunt for Dr. Jekyll, who is responsible for a series of murders.

Unlike in other screen versions of 'Dr. Jekyll & Mr. Hyde', Jekyll is evil in his own right, instead of being a man split between good and evil personae. He has no qualms about transforming into Mr. Hyde to commit murder.

This film version of Mr. Hyde is an inarticulate, hirsute monster reminiscent of The Wolf Man (When Tubby, in monster form, transforms others into similar creatures by biting them, it is quite reminiscent of werewolf legend); since all of the attacks take place in and around Hyde park he is named "The Hyde Park Monster" by the press, so everyone (even Dr. Jekyll) refer to him as simply "Hyde"