It Walks By Night by John Dickson Carr Copyright 1930
Not the type of book I usually read, this mystery from the '30s is set in Paris. The story begins with a quote about night monsters that bring about thoughts of werewolves and vampires. It is, however, a murder mystery complete with a severed head. The impossible murder that could not have happened with all doors being watched. It contains all of the needed components for this type of mystery. There is the inspector, the gruesome beheading, the new bride, trickery, and the woman scorned. To top it off - a little Reefer Madness mixed in. Not my favorite read, but different.