Devilish Duos, as one might expect, provides a pair of villains who work together. In this case the supernatural pair of Smoke, the ghost of a murdered woman, and Mirrors, a woman who long ago made a dark pact with evil entities from beyond our world. Similar to the Threat Report products from Green Ronin the meat of the product are the two villainous characters.
Smoke is a ghost, wronged in life, and murdered, she was unable to move beyond after death and instead has become a restless spirit who kills to ease the pain of her soul. Her powers revolve around her ghostly condition and manipulation of the powers of fire and smoke that ended her life. Her partner, both in mayhem and in love, is Mirrors. Mirrors made a pact with dark gods that granted her powers of invisibility and stealth. In return she kills to make sacrifices to those same dark gods.
Both characters are given full background and personality write-ups, as well as complete stat blocks for Mutants and Masterminds Third Edition. In addition there are character standees, a page worth of adventure hooks, a sidebar about using the pair with the Oktobermen, and some nice full color artwork.
For $2 you get a pair of supernatural characters, suitable for any darker superheroes game, or modern or gothic horror. The product dovetails nicely with the Oktobermen, being the same genre and approximate power level, and would make a nice add-on for that team in a game (or even possibly villainous rivals).
Rating: 90% - Easily on par with the Threat Reports from Green Ronin.