With Loup Garou, Willie Deville explored new rhythmic and melodic territory, experimenting with cajun and mariachi music. Not all of the songs work — frequently, Deville sounds too nervous and studied to really break free and have fun with the material — but it nevertheless is enjoyable, with enough strong songs (especially "You'll Never Know," a duet with Brenda Lee) to make it worthwhile for longtime Deville followers.