Henry Hunter is a park ranger at Yellowstone, and quite taken with pretty Judith Barrett when she shows up to meet with her father, Ralph Morgan, who has been in Australia for eighteen years -- or so she thinks. By the time things start to come clear, Morgan has been murdered, Hunter has been falsely accused and there are several fine suspects in this nicely scripted B mystery directed by Arthur Lubin.
There is nice location shooting, a good supporting cast, including Andy Devine, Alan Hale, Rollo Lloyd (looking like his more famous brother gone to seed), and Paul Harvey. The writers include Stuart Palmer, which accounts for the nice, classically tangled assortment of suspects. I must admit I chose one at the three-quarters mark based on editing choices meant to make the movie shorter -- in the end, though, I was surprised!
It's not a classic of the genre, but it does what a B mystery should: gives a good puzzler with good actors and some some nice scenery.