Apocalypse Love.

When Tom lost his girlfriend BB to a tragic accident on prom night, the police suspected him, his family shunned him, his friends blamed him—or they would have, if he’d had any. Now he writes death metal love songs by BB’s grave – until his restless solitude is shattered when space aliens invade Earth and turn the dead into an army of zombie killers. Battling to save BB from becoming a puppet to alien masters and his own desire to resurrect his lost love, Tom has to dodge bullets, legions of zombies, aliens, death-rays, and global apocalypse.