Unlike the glut of punk-influenced screamo-pop bands, Cleveland up-and-comers Who Killed Marilyn? do the post-genre thing right: They don't forget that they're playing rock and roll. Grounded in metal, the band's long, self-titled debut EP plays like a promising demo, stuffed with anthemic leads, middleweight breakdowns, sandpaper melodies, and abstract-expressionist experimentation (see "It's a War" for all of the above). The quintet pulls it together best in a cover of Pat Benatar's "Heartbreaker" -- a highlight of their live sets. For now, Marilyn's reach exceeds its grasp, but it's growing.