There are two short stories in this book: The UFO Highway and The Woman Who Bent Her Umbrella, although both stories have unique settings and unforeseeable plot twists in their very different ways, I still like the latter story better.
Two novellas. The first, UFO Boulevard, deals with the typical Shimada-conceit of having to interpret a seemingly fantastical story. It's an alright solution, though very coincidence heavy. I think the second story, The Woman Who Broke Her Umbrella, is better, initially an everyday mystery that flows into a murder. There's a similar problem to Murder in the Crooked House, where Shimada delves deep into what led the murderer to crime, but it's very superfluous and the story would've been much the same without it. There's also a line in here which implies Shimada thinks O.J. Simpson was innocent, so. Make of that what you will.