This little mystery is great fun, and zips along familiar cinematic paths with professional skill, all the Warner technicians called into play to fashion a quickie "B" mystery with some of the best of the character actors around, and one new guy, Turhan Bey, who was still wet behind the ears, but managed to be "clever and cunning" and craftily mysterious.From the opening shots on a foggy wharf, with a mysterious large box hoisted off as ship and into a truck, the extremely mobile camera transports us quickly to an English boarding house crammed with lamps and antimacassars and ferns and portraits and zooms from upstairs to downstairs and in and out of doors as suspects in a crime skulk about and share concerns and accusations with mild hysteria lurking just below their civilized surfaces.But this is not a serious film; it is a fast-paced gem full of strange relationships, a murder or two, folks running about in disguises, and, at last, a clueless police force showing up as things get out of hand, a couple of bodies in locked upstairs rooms. I was never bored, was often amused, had a devil of a time attempting to pin down who-done-it, and much enjoyed the offbeat characters written into the script. Would that much of today's major films had the virtues of succinctness!

Residents of a boarding house become suspects when one of the owners is murdered, the maid goes missing, and a mysterious easterner is involved in shady dealings. Romantic triangles, smuggled boxes, and a strange veiled lady complicate the plot.Average whodunit, very much in the light-hearted style of the time. There's the amateur sleuth, the ingénue, the comical cops, and a collection of sinister and not-so-sinister types. Unfortunately, the direction lacks imagination or style. The dense, talky script is filmed in pedestrian fashion adding little to the stage play origin. Some suspense builds in generic fashion as we wonder who killed Joe. However, trying to cram the many story subplots into an hour's format squanders narrative focus, thus weakening suspense. Heather Angel as the ingénue Sylvia adds much needed spark, while Mary Field as the spinsterish Miss Snell manages a degree of pathos. The unusual ending is, I think, a matter of taste. All in all, as a mystery, the programmer doesn't live up to its opening scene, but might do for a rainy night.

Rarely in films do we find a murder plot that misdirects viewers with the finesse of "Shadows On The Stairs". What a delight. Beginning with one particular early scene, the plot cleverly leads viewers down the garden path. And a second twist delightfully compounds the misdirection.There are eight major characters. At least one is murdered, leaving seven suspects. I was sure I knew who the killer was. I was dead wrong, owing mostly to the shrewdly written script.Most of the action takes place inside a multistory boarding house. People come into and leave rooms rather often. And the script is quite talky. The film has the look and feel of a stage play, except for the first few minutes. The title is a bit misleading, implying noir lighting that doesn't really exist in the film. There's not much in the way of spine-tingling suspense. The main selling point is the stunning ending wherein viewers learn how they have been duped into making multiple false assumptions. Clearly, that upsets some viewers. But one cannot deny that the misdirection is clever.B&W lighting is acceptable though conventional. Background music is a tad manipulative, which is consistent with many films from that era. Casting is fine. Acting inclines toward the exaggerated, yet that is subtly consistent with the underlying story concept. The film does not take itself too seriously, and it should be watched as slightly comical.There's no great thematic depth to the story. The appeal lies entirely in the film's entertainment value. But the surprise ending makes "Shadows On The Stairs" one of the better whodunit mysteries from the 1940s.

In a boarding house in London in 1937 all is night quiet. The boarders and the landlords are all enmeshed in plots of love, lust and greed. It isn't long before bodies begin piling up.Unremarkable, but rather enjoyable little mystery based upon a stage play called Murder on the Second Floor, which is the floor that all of the boarders stay on. I went into the film knowing next to nothing about the plot and had myself a really good time. Forgive me for not giving more details as to the plot but since the film is so convoluted it takes a good long while before you can really get a handle on who is who and who is doing what. I think had I known what was going on at the get go I wouldn't have enjoyed it as much, part of the fun was waiting to see what was actually going on. It is all explained, a bit too nicely, but considering the denouncement, understandably.Definitely worth a look see if you like mysterious mysteries of a contrived sort.6.5 or so out of 10, 6 out of ten for IMDb purposes.