This was William Warren's 2nd outing as Michael Lanyard the Lone Wolf with the eternal butler Eric Blore in for his 1st of many. It's another pleasant mystery-adventure, with fairly high Columbia production values and a generally light-hearted approach.
Girls father is murdered and has valuable pearl necklace stolen, girl enrols Lanyard to help and they both seem keener to find the pearls than the murderers. At first anyway, when their close mutual friend is also murdered it suddenly gets serious. With many wonderful gurnings by Blore, laconic wit from William and decoration from inquisitive Joan Perry it races along to the satisfactory climax. Favourite bit: Lanyard's fond encounter with his old friend (?) Emil Gorlic (played by Montagu Love) in his hotel room. Lanyard's passion for his extensive aquarium in his living room was I'm glad to relate, short-lived, and by the way the disputed elaborate balcony from Spy Hunt is here too, again on the 1st floor this time at the house of one of the baddies.
If you like the genre as I do - nice work by all concerned, if you don't - shame you wasted your time.