If you're looking for books with the same dark, seductive vibe as 'Wicked Devil', you might want to check out 'Corrupt' by Penelope Douglas. It's got that same intense, morally gray romance with characters who toe the line between love and obsession. The dynamics are twisted in the best way, and the tension is so thick you could cut it with a knife.
Another great pick is 'Den of Vipers' by K.A. Knight. It’s wild, chaotic, and unapologetically dark—kind of like 'Wicked Devil' but with even more edge. The reverse harem aspect adds a different flavor, but the raw energy and danger are totally there. If you’re into antiheroes who make your heart race for all the wrong (or right) reasons, this one’s a must-read.