“I may not be the greatest detective in the world … but I am the most unusual.”
So says Don Gale, the shady private investigator played by Richard Dix in William Castle’s Mysterious Intruder, the fifth entry in Columbia’s mystery series The Whistler. Based on the CBS radio show of the same name, each film in the series featured Dix in the lead role, but unlike other B mystery series of the ’30s and ’40s, like Charlie Chan, The Falcon, Boston Blackie, Michael Shayne, and the Crime Doctor, Dix played a different character in each. The Whistler, who narrated the radio show but never participated directly in the events of the story, made similar appearances in the film series, walking in the shadows, whistling the haunting 13-note theme music by Wilbur Hatch, and occasionally offering a pithy analysis of the trouble the characters were in. The anthology format and Dix’s strange, arresting performances made The Whistler one of the more interesting series of its time.
In Mysterious Intruder, Gale is an oily operator who employs a “photographic model” named Freda Hanson (Helen Mowery) for dirty work. He also has a secretary named Joan (Nina Vale) who hates him. Clearly motivated by money, Gale walks the narrow line between self-interest and outright villainy. He’s an interesting character to watch, since his intentions remain shadowy right up to the end of the picture. This being a B-level programmer, we’re not treated to a deep character study, but Dix is a good enough performer to make Mysterious Intruder worth watching.
When the film begins, Gale is in his office, which has a spectacular view of the city and looks as if it should be home to the most expensive lawyer in town, not a small-time bedroom snooper. He’s visited by Edward Stillwell (Paul Burns), a kindly old music store owner who wishes to track down a young woman whom he hasn’t seen since she was 14, seven years ago. Her name is Elora Lund, and he has something he wants to give her. One hundred dollars is all Stillwell can afford to pay, which isn’t enough to pique Gale’s interest, but he changes his mind when Stillwell tells him that Elora Lund will pay any amount for bringing them together.
Three days pass, and Stillwell receives a visitor in his shop. She’s a tall, attractive blonde, and she convinces Stillwell that she is Elora Lund. (She’s actually Freda Hanson, Gale’s blackmail tool.) Stillwell tells “Elora” that among the countless odds and ends that her late mother brought in for him to sell was one item that will bring a fortune if sold. Unbeknownst to Freda, however, she was tailed to the store by a hulking thug named Pontos, played by dependable character actor Mike Mazurki. (Mazurki is always a welcome sight, but he doesn’t have a lot to do in this picture. It’s not too different from the role he played in Dick Tracy; a vicious killer with few to no lines.) Pontos murders Stillwell, and Freda screams and flees the scene.
Meanwhile, we learn that the real Elora Lund (Pamela Blake) is in a sanitarium, recovering from the effects of an auto accident. She’s appears to be uninjured physically, and why she wasn’t recuperating at home is never explained. Ah, the good old days of “rest cures.”
Before he became the premier schlockmeister of the ’50s and the most famous “gimmick” director in Hollywood, William Castle was a dependable director of one-hour programmers, including several Whistler and Crime Doctor pictures. Mysterious Intruder is a tight, entertaining ride that features plenty of twists and turns, as well as one of my favorite plot conceits, the private dick who constantly contaminates crime scenes and tampers with evidence for his own purposes, all while staying one step ahead of the police.