Decent old programmer with a locked door murder mystery and a cast of familiar faces as suspects. A bland detective (Dick Purcell) tries to get to the bottom of things as all the suspects are gathered in the obligatory old dark house. You can figure out the rest. Solid cast includes Ann Sheridan, Ben Welden, William Hopper, and Anne Nagel. "Best name" award goes to Elspeth Dudgeon, who plays the cranky old lady in the wheelchair. My favorite scene comes at the end when Purcell goes to arrest the killer and is ignominiously knocked on his rear end. Also, dig that fireplace with the quote "The end of all good hunting is nearer than you dream" across the front in huge letters. If that had anything to do with anything, I must have missed it. This isn't the type of movie anyone's going to brag about seeing but if you're looking for a breezy whodunnit, you could do a lot worse than this. Short runtime helps a lot.

It's a decent if unremarkable little mystery with many clichés from that whodunit saturated decade. There's the puzzle of murder in a locked room, an old dark house, and suspects aplenty. Of course, the culprit is exposed amid a climactic assembly of suspects, perhaps the biggest cliché of all. As detective Lance O'Leary (that name should have been reconsidered), actor Purcell has nearly zero charisma, which unfortunately eliminates someone for the audience to identify with. And even the formidable Ann Sheridan is denied her usual pizazz. Only crotchety old Aunt Lucy (Dudgeon) projects real personality. What the movie does have going for it is a clever solution to the locked room.The studios (here it's Warner Bros.) turned out hundreds of these competent little programmers year after year, a tribute to their professionalism. Of course, a whodunit like Mystery House would migrate later on to TV, especially to a series like Perry Mason (1957- 1966), where the suspects would assemble in a courtroom. Speaking of Mason, catch a sleek, young William Hopper years before his personable detective role on the Mason series.All in all, the movie's main value may be in it's representative nature of what people went to see on a slow Saturday evening so many years ago.

I was pleased to see that more than a few folks here on IMDb knew who Mignon G. Eberhart was. "Mystery House" was based on one of Eberhart's 'Nurse Keate' stories. In a nutshell, these stories are all murder mysteries, all use a medical pretext as a plot springboard, and all feature a hospital nurse, Miss Keate, plus a detective named Lance O'Leary (Dick Purcell, in this outing). Ann Sheridan was the only actress to portray Nurse Keate more than once; --her other showing was in "The Patient in Room 18" --a weaker entry, which starred Patric Knowles as Detective O'Leary. The weakest Keate has to be Marguerite Churchill, who was called 'Nurse Keating' in "Murder by an Aristocrat." As good as Ann Sheridan was as Nurse Keate, she was easily bested by Aline McMahon's turn as the sleuthing nurse in the Warners' Eberhart story, "While the Patient Slept." Even though Eberhart's characters appeared in several films, it would probably be inaccurate to describe these films as a "series." In "While the Patient Slept," Guy Kibbee played the oldest O'Leary of them all, --however, he filled the part with character and gusto, --traits that both Dick Purcell and Patric Knowles lacked.Most of those who commented here, appreciated the film's supporting cast, but largely didn't know who any of them were. I also liked the supporting cast, and think it's worth mentioning some of those actors here.---1)-William Hopper, who would later become known for his 9-year stint as Paul Drake, in the Perry Mason TV series on CBS. 2)-Anne Nagel, a beautiful actress who never rose above B-movie roles (such as this one). She appeared in films such as "The Mad Doctor of Market Street" and "Murder in the Music Hall.". Nagel also had a Perry Mason connection, although not to the TV series. She appeared as Janice Alma Bromley (the "fake Janice") in the Mason film, "The Case of the Stuttering Bishop." 3)-Ben Welden: A "tough guy" in hundreds of films and early TV shows, Welden specialized in playing hoods, --often as comic relief. In "Mystery House," it's Welden's toupee that figures in the plot. A steady worker, Welden had parts in at least 18 films in 1938 alone, the year of "Mystery House." Some of his 1938 output included: "Smashing the Rackets" "Crime Ring" "The Saint in New York" and "Time Out for Murder." In early television, Welden racked up multiple appearances in programs such as "Space Patrol" "The Lone Ranger" and "The Adventures of Superman." 4)-Dennie Moore, --a marvelous supporting actress, who's Jersey accent kept her typecast in films. She was often cast as a maid, or a shop-girl, or as a 'comic sidekick' to the heroine. Moore is best remembered for her brief (though, pivotal) role as Olga the manicurist, who "spills the beans" to Norma Shearer's character in the 1939 blockbuster film, "The Women." 5)-Elspeth Dudgeon, the elderly actress who played the wheelchair-bound aunt in "Mystery House" was a true wonder to behold. Though often seen in very small parts, where folks cannot remember her name, many viewers marveled at her role as Ernest Thesiger's father, the bedridden Sir Roderick Femm (yes-- she played a MAN - with whiskers!) in "The Old Dark House." In that film's closing credits she was billed as "John" Dudgeon! Personally, my fave screen appearance by Ms. Dudgeon was in Warner Brothers 1936 B-mystery-comedy, "Sh! The Octopus." If you haven't seen it, I won't spoil it for you. I will, however, say that Dudgeon simply steals the movie, near it's climax. Other supporting-actors who appeared in "Mystery House" include Sheila Bromley, Eric Stanley, and Trevor Bardette (another veteran who has hundreds of screen appearances to his credit). Any discussion of the Nurse Keate films would be incomplete without mentioning "The Great Hospital Mystery" --produced by 20th-Century/Fox, and starring Jane Darwell. While most of the Eberhart/Keate yarns were filmed by Warners, this lone 20th/Fox effort stands out for many reasons. It features a superior cast of supporting actors. In addition to Oscar-winner Jane Darwell, the cast includes Sig Ruman, Sally Blane, William Demarest, Joan Davis, and Thomas Beck. If you're an Eberhart/Keate fan, "The Great Hospital Mystery" is the film you must not miss. It's an atmospheric little mystery, best seen late at night....when you're all alone. --D.--

I enjoyed this movie very much. Considering it is a B-movie, in my opinion, it is a good B-movie. It is based on the mystery novel "The Mystery of Hunting's End" by Mignon G. Eberhart, and the movie title "Mystery House" is very appropriate, since a group of people are gathered together in a house where a man was murdered. The acting by the entire cast is good. With the exception of Dick Purcell and Ann Sheridan, I was not familiar with any of them. It is a short movie, but there is much action in less than one hour. I would recommend this movie to anyone who is interested in a good mystery movie. The hour went by very fast.