Briana Taylor, Luke Rainey, Hal O'Connell, Don Cilluffo and Shawn Abramowitz stand behind Stephen McMillen in Desert Theatreworks' The Mousetrap.

Yes, The Mousetrap is the longest-running play in the history of the world. (I saw it in London decades ago, and it’s still going strong in the West End, 60-plus years after its debut.) Yes, it’s an Agatha Christie story, and she is the grande dame of mystery writing. Yes, it’s a different type of presentation than we usually see in the desert.

But that’s not why you should go to see the Desert Theatreworks production of The Mousetrap at the Joslyn Center. Every theater student and actor—and anyone remotely interested in theater—should see this play to study its direction. Lance Phillips-Martinez gifts us with a classic piece of what he readily admits is “old-school.” It’s rare enough to see clever directing, but this extraordinary example of balanced blocking is textbook.

Watch how the actors move. Because of Florentino Carrillo’s good sound, you can sit anywhere in the auditorium. Too often, we focus on the actor who is speaking, but here, we are treated to a constantly moving kaleidoscope of motion by all. Everyone glides with lava-lamp smoothness in a beautiful ballet, particularly delicious when all eight actors are onstage at once. And although the symmetry shifts constantly, the scene is always in balance. This is big-picture directing at its best.

Ron Phillips-Martinez’s excellent set, with its clever absence of doors and its use of multi-layered depth, enhances his life-partner Lance’s direction. And yet no move is made without motivation. Lance Phillips-Martinez doesn’t just idly shift actors about as if they were chess-board pieces. Every movement is the result of a character’s clearly shown anxiety, deep thought, boredom or curiosity. Again: Directing at its best.

The first act presents the characters. It’s not easy to keep eight roles straight in some plays, but the clever casting here results in eight wildly differing body types, and personalities that are gradually revealed. Everyone’s back-story emerges as the plot thickens. The laughs come easily as the characters become defined, and the clues are discovered. We can take a moment to admire the hard work of makeup/hair/props manager Kathy Taylor-Smith, the lighting by Doug Ridgeway, and the stage managing of Megan Camacho.

The characters are gradually introduced. Christopher Wren is played by Luke Rainey, who works without makeup so we can actually see him go bright red when he is upset, embarrassed or freaked out—an astonishing effect. Alden West, the desert’s grande dame of the theater, is Mrs. Boyle; West’s magnificent silver hair is inexplicably covered by a heavy gray wig, but her natural dignity comes through beautifully, and her upper-class accent is flawless. The role of Major Metcalf is played by Hal O’Connell, with a mysterious and tight-lipped presence, as well as a remote and formal air. Briana Taylor plays Miss Casewell, a mannish, abrupt, pantsuited (In the 1930s? Hmmm …) character clearly covering up a murky past. Don Cilluffo eats up his fun role as Signor Paravicini, flailing about, Italian-style, kissing hands and gesturing wildly—and having the most fabulous time. Stephen McMillen appears as Sgt. Trotter, who unexpectedly shows up to investigate a murder, with a correct, clipped and appropriately militaristic style.

The second act changes the mood: Now we focus on the story. Everyone is snowed in (being Canadian, I can sure identify with that) at a country inn 30 miles from London, owned by Giles (solidly played by the reliable Shawn Abramowitz, with a quite delightful Scottish accent) and Mollie (Ashley Hernandez, morphing into another role so thoroughly as to be unrecognizable from her other recent work—except for her unmistakable and beautifully carrying voice). They and their guests are trapped there on the inn’s opening day.

We are solemnly sworn not to talk about the rest of the plot. Really; I mean sworn: The audience has to stand and swear not to reveal the ending! Fortunately, I saw the play so long ago that I didn’t remember how it resolves. The twists and turns of the plot, the clever “red herrings” that are introduced to confuse us, and the puzzling aspects of the characters’ actions all combine to make it impossible for the audience to guess “whodunit.” I was as surprised as anyone to see how this 61-year-old play turned out. Agatha Christie strikes again!

My lips are sealed. Go see for yourself.

The Mousetrap, presented by Desert Theatreworks, is performed at 7 p.m., Friday; 2 and 7 p.m., Saturday; and 2 p.m., Sunday, through Sunday, Nov. 10, at the Arthur Newman Theatre in the Joslyn Center, 73750 Catalina Way, Palm Desert. Tickets are $23 to $25. The show runs two hours and 15 minutes with one 15-minute intermission. For tickets or more information, call 760-980-1455, or visit www.dtworks.org.

Valerie-Jean Hume’s career has included working as a stage/film/commercial/TV/voiceover actress, radio personality/host, voice and speech teacher, musician, lounge singer, cruise-ship hostess, theater...