Probably that's not the best one-shot you can find out there... but I still recommend it, cause if you like the genre, you can enjoy 10 minutes reading this
This review contains slight spoilers ahead:
This is one of the firsts one-shot published by Hakuri. That's not one of her best works: the story is pretty predictable, the only thing I didn't forecast was Madoka's real feelings revelation; but the story is also enjoyable, being a one-shot.
Moreover I want to underline the art, which is great as always: Haruki has an handsome delicate trait, and her way to draw characters is excellent too... this is one of author's strength.
The characters are not bad, as I told before Madoka's turnaround was a surprize (it was obvious she called the police, but not that she hated Amane) and Amane was a typical yandere.
My overall is around 6-7/10... not an excellent work, but a good one. I consider it worth reading
Thanks for reading